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Finding the Fourth Proportional to 9,151.92, 13,727.88 and 2,912.04

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Solution

The fourth proportional to 9,151.92, 13,727.88 and 2,912.04 is: 4,368.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.92 : 13,727.88 = 2,912.04 : x
  2. Step 2: Convert to fraction form
    9,151.92/13,727.88 = 2,912.04/x
  3. Step 3: Cross multiply
    9,151.92x = 13,727.88 × 2,912.04
  4. Step 4: Simplify right side
    9,151.92x = 39,976,135.68
  5. Step 5: Solve for x
    x = 39,976,135.68/9,151.92
  6. Step 6: Final answer
    x = 4,368.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.