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Finding the Fourth Proportional to 8,602.64, 12,882.08 and 5,672.06

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Solution

The fourth proportional to 8,602.64, 12,882.08 and 5,672.06 is: 8,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.64 : 12,882.08 = 5,672.06 : x
  2. Step 2: Convert to fraction form
    8,602.64/12,882.08 = 5,672.06/x
  3. Step 3: Cross multiply
    8,602.64x = 12,882.08 × 5,672.06
  4. Step 4: Simplify right side
    8,602.64x = 73,067,930.68
  5. Step 5: Solve for x
    x = 73,067,930.68/8,602.64
  6. Step 6: Final answer
    x = 8,493.66

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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.