Home / 13,208.76-18,227.34-7,239.24

Finding the Fourth Proportional to 13,208.76, 18,227.34 and 7,239.24

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Solution

The fourth proportional to 13,208.76, 18,227.34 and 7,239.24 is: 9,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.76 : 18,227.34 = 7,239.24 : x
  2. Step 2: Convert to fraction form
    13,208.76/18,227.34 = 7,239.24/x
  3. Step 3: Cross multiply
    13,208.76x = 18,227.34 × 7,239.24
  4. Step 4: Simplify right side
    13,208.76x = 131,952,088.82
  5. Step 5: Solve for x
    x = 131,952,088.82/13,208.76
  6. Step 6: Final answer
    x = 9,989.74

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Find fourth proportional to 6,604.38, 9,113.67 and 3,619.62
Half scale
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Double scale
Find fourth proportional to 13,209.76, 18,228.72 and 7,240.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.