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Finding the Fourth Proportional to 8,656.64, 12,996.48 and 5,854.88

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Solution

The fourth proportional to 8,656.64, 12,996.48 and 5,854.88 is: 8,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.64 : 12,996.48 = 5,854.88 : x
  2. Step 2: Convert to fraction form
    8,656.64/12,996.48 = 5,854.88/x
  3. Step 3: Cross multiply
    8,656.64x = 12,996.48 × 5,854.88
  4. Step 4: Simplify right side
    8,656.64x = 76,092,830.82
  5. Step 5: Solve for x
    x = 76,092,830.82/8,656.64
  6. Step 6: Final answer
    x = 8,790.12

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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.