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Finding the Fourth Proportional to 8,502.92, 12,752.07 and 5,378.23

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Solution

The fourth proportional to 8,502.92, 12,752.07 and 5,378.23 is: 8,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.92 : 12,752.07 = 5,378.23 : x
  2. Step 2: Convert to fraction form
    8,502.92/12,752.07 = 5,378.23/x
  3. Step 3: Cross multiply
    8,502.92x = 12,752.07 × 5,378.23
  4. Step 4: Simplify right side
    8,502.92x = 68,583,565.44
  5. Step 5: Solve for x
    x = 68,583,565.44/8,502.92
  6. Step 6: Final answer
    x = 8,065.88

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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.