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Finding the Fourth Proportional to 8,351.52, 12,543.52 and 6,506.40

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Solution

The fourth proportional to 8,351.52, 12,543.52 and 6,506.40 is: 9,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.52 : 12,543.52 = 6,506.40 : x
  2. Step 2: Convert to fraction form
    8,351.52/12,543.52 = 6,506.40/x
  3. Step 3: Cross multiply
    8,351.52x = 12,543.52 × 6,506.40
  4. Step 4: Simplify right side
    8,351.52x = 81,613,158.53
  5. Step 5: Solve for x
    x = 81,613,158.53/8,351.52
  6. Step 6: Final answer
    x = 9,772.25

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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.