Home / 15,553.29-21,475.31-10,255.53

Finding the Fourth Proportional to 15,553.29, 21,475.31 and 10,255.53

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Solution

The fourth proportional to 15,553.29, 21,475.31 and 10,255.53 is: 14,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.29 : 21,475.31 = 10,255.53 : x
  2. Step 2: Convert to fraction form
    15,553.29/21,475.31 = 10,255.53/x
  3. Step 3: Cross multiply
    15,553.29x = 21,475.31 × 10,255.53
  4. Step 4: Simplify right side
    15,553.29x = 220,240,634.69
  5. Step 5: Solve for x
    x = 220,240,634.69/15,553.29
  6. Step 6: Final answer
    x = 14,160.39

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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.