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Finding the Fourth Proportional to 8,510.91, 12,753.87 and 4,288.38

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Solution

The fourth proportional to 8,510.91, 12,753.87 and 4,288.38 is: 6,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510.91 : 12,753.87 = 4,288.38 : x
  2. Step 2: Convert to fraction form
    8,510.91/12,753.87 = 4,288.38/x
  3. Step 3: Cross multiply
    8,510.91x = 12,753.87 × 4,288.38
  4. Step 4: Simplify right side
    8,510.91x = 54,693,441.03
  5. Step 5: Solve for x
    x = 54,693,441.03/8,510.91
  6. Step 6: Final answer
    x = 6,426.27

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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.