Home / 13,208.34-18,227.54-7,240.23

Finding the Fourth Proportional to 13,208.34, 18,227.54 and 7,240.23

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Solution

The fourth proportional to 13,208.34, 18,227.54 and 7,240.23 is: 9,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.34 : 18,227.54 = 7,240.23 : x
  2. Step 2: Convert to fraction form
    13,208.34/18,227.54 = 7,240.23/x
  3. Step 3: Cross multiply
    13,208.34x = 18,227.54 × 7,240.23
  4. Step 4: Simplify right side
    13,208.34x = 131,971,581.93
  5. Step 5: Solve for x
    x = 131,971,581.93/13,208.34
  6. Step 6: Final answer
    x = 9,991.53

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Half scale
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Double scale
Find fourth proportional to 13,209.34, 18,228.92 and 7,241.23
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.