Home / 11,208.10-15,468.67-7,240.76

Finding the Fourth Proportional to 11,208.10, 15,468.67 and 7,240.76

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Solution

The fourth proportional to 11,208.10, 15,468.67 and 7,240.76 is: 9,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.10 : 15,468.67 = 7,240.76 : x
  2. Step 2: Convert to fraction form
    11,208.10/15,468.67 = 7,240.76/x
  3. Step 3: Cross multiply
    11,208.10x = 15,468.67 × 7,240.76
  4. Step 4: Simplify right side
    11,208.10x = 112,004,926.99
  5. Step 5: Solve for x
    x = 112,004,926.99/11,208.10
  6. Step 6: Final answer
    x = 9,993.21

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Half scale
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Double scale
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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.