Home / 16,126.20-22,294.08-15,978.42

Finding the Fourth Proportional to 16,126.20, 22,294.08 and 15,978.42

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Solution

The fourth proportional to 16,126.20, 22,294.08 and 15,978.42 is: 22,089.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,126.20 : 22,294.08 = 15,978.42 : x
  2. Step 2: Convert to fraction form
    16,126.20/22,294.08 = 15,978.42/x
  3. Step 3: Cross multiply
    16,126.20x = 22,294.08 × 15,978.42
  4. Step 4: Simplify right side
    16,126.20x = 356,224,173.75
  5. Step 5: Solve for x
    x = 356,224,173.75/16,126.20
  6. Step 6: Final answer
    x = 22,089.78

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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.