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Finding the Fourth Proportional to 10,179.91, 15,188.92 and 8,933.32

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Solution

The fourth proportional to 10,179.91, 15,188.92 and 8,933.32 is: 13,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.91 : 15,188.92 = 8,933.32 : x
  2. Step 2: Convert to fraction form
    10,179.91/15,188.92 = 8,933.32/x
  3. Step 3: Cross multiply
    10,179.91x = 15,188.92 × 8,933.32
  4. Step 4: Simplify right side
    10,179.91x = 135,687,406.87
  5. Step 5: Solve for x
    x = 135,687,406.87/10,179.91
  6. Step 6: Final answer
    x = 13,328.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.