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Finding the Fourth Proportional to 8,376.91, 12,568.23 and 5,253.14

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Solution

The fourth proportional to 8,376.91, 12,568.23 and 5,253.14 is: 7,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.91 : 12,568.23 = 5,253.14 : x
  2. Step 2: Convert to fraction form
    8,376.91/12,568.23 = 5,253.14/x
  3. Step 3: Cross multiply
    8,376.91x = 12,568.23 × 5,253.14
  4. Step 4: Simplify right side
    8,376.91x = 66,022,703.16
  5. Step 5: Solve for x
    x = 66,022,703.16/8,376.91
  6. Step 6: Final answer
    x = 7,881.51

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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.