Home / 16,188.82-22,343.25-9,115.90

Finding the Fourth Proportional to 16,188.82, 22,343.25 and 9,115.90

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Solution

The fourth proportional to 16,188.82, 22,343.25 and 9,115.90 is: 12,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.82 : 22,343.25 = 9,115.90 : x
  2. Step 2: Convert to fraction form
    16,188.82/22,343.25 = 9,115.90/x
  3. Step 3: Cross multiply
    16,188.82x = 22,343.25 × 9,115.90
  4. Step 4: Simplify right side
    16,188.82x = 203,678,832.68
  5. Step 5: Solve for x
    x = 203,678,832.68/16,188.82
  6. Step 6: Final answer
    x = 12,581.45

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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.