Home / 15,600.17-21,522.11-9,621.42

Finding the Fourth Proportional to 15,600.17, 21,522.11 and 9,621.42

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Solution

The fourth proportional to 15,600.17, 21,522.11 and 9,621.42 is: 13,273.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.17 : 21,522.11 = 9,621.42 : x
  2. Step 2: Convert to fraction form
    15,600.17/21,522.11 = 9,621.42/x
  3. Step 3: Cross multiply
    15,600.17x = 21,522.11 × 9,621.42
  4. Step 4: Simplify right side
    15,600.17x = 207,073,211.49
  5. Step 5: Solve for x
    x = 207,073,211.49/15,600.17
  6. Step 6: Final answer
    x = 13,273.78

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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.