Home / 10,908.72-15,051.42-6,432.12

Finding the Fourth Proportional to 10,908.72, 15,051.42 and 6,432.12

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Solution

The fourth proportional to 10,908.72, 15,051.42 and 6,432.12 is: 8,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.72 : 15,051.42 = 6,432.12 : x
  2. Step 2: Convert to fraction form
    10,908.72/15,051.42 = 6,432.12/x
  3. Step 3: Cross multiply
    10,908.72x = 15,051.42 × 6,432.12
  4. Step 4: Simplify right side
    10,908.72x = 96,812,539.61
  5. Step 5: Solve for x
    x = 96,812,539.61/10,908.72
  6. Step 6: Final answer
    x = 8,874.78

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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.