Home / 15,600.28-21,521.96-10,887.30

Finding the Fourth Proportional to 15,600.28, 21,521.96 and 10,887.30

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Solution

The fourth proportional to 15,600.28, 21,521.96 and 10,887.30 is: 15,019.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.28 : 21,521.96 = 10,887.30 : x
  2. Step 2: Convert to fraction form
    15,600.28/21,521.96 = 10,887.30/x
  3. Step 3: Cross multiply
    15,600.28x = 21,521.96 × 10,887.30
  4. Step 4: Simplify right side
    15,600.28x = 234,316,035.11
  5. Step 5: Solve for x
    x = 234,316,035.11/15,600.28
  6. Step 6: Final answer
    x = 15,019.99

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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.