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Finding the Fourth Proportional to 8,645.27, 12,969.95 and 3,714.95

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Solution

The fourth proportional to 8,645.27, 12,969.95 and 3,714.95 is: 5,573.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.27 : 12,969.95 = 3,714.95 : x
  2. Step 2: Convert to fraction form
    8,645.27/12,969.95 = 3,714.95/x
  3. Step 3: Cross multiply
    8,645.27x = 12,969.95 × 3,714.95
  4. Step 4: Simplify right side
    8,645.27x = 48,182,715.75
  5. Step 5: Solve for x
    x = 48,182,715.75/8,645.27
  6. Step 6: Final answer
    x = 5,573.30

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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.