Home / 15,402.33-21,253.62-11,371.30

Finding the Fourth Proportional to 15,402.33, 21,253.62 and 11,371.30

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Solution

The fourth proportional to 15,402.33, 21,253.62 and 11,371.30 is: 15,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402.33 : 21,253.62 = 11,371.30 : x
  2. Step 2: Convert to fraction form
    15,402.33/21,253.62 = 11,371.30/x
  3. Step 3: Cross multiply
    15,402.33x = 21,253.62 × 11,371.30
  4. Step 4: Simplify right side
    15,402.33x = 241,681,232.25
  5. Step 5: Solve for x
    x = 241,681,232.25/15,402.33
  6. Step 6: Final answer
    x = 15,691.21

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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.