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Finding the Fourth Proportional to 8,437.52, 12,656.28 and 6,585.86

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Solution

The fourth proportional to 8,437.52, 12,656.28 and 6,585.86 is: 9,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.52 : 12,656.28 = 6,585.86 : x
  2. Step 2: Convert to fraction form
    8,437.52/12,656.28 = 6,585.86/x
  3. Step 3: Cross multiply
    8,437.52x = 12,656.28 × 6,585.86
  4. Step 4: Simplify right side
    8,437.52x = 83,352,544.54
  5. Step 5: Solve for x
    x = 83,352,544.54/8,437.52
  6. Step 6: Final answer
    x = 9,878.79

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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.