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Finding the Fourth Proportional to 8,487.98, 12,732.84 and 2,941.32

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Solution

The fourth proportional to 8,487.98, 12,732.84 and 2,941.32 is: 4,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.98 : 12,732.84 = 2,941.32 : x
  2. Step 2: Convert to fraction form
    8,487.98/12,732.84 = 2,941.32/x
  3. Step 3: Cross multiply
    8,487.98x = 12,732.84 × 2,941.32
  4. Step 4: Simplify right side
    8,487.98x = 37,451,356.95
  5. Step 5: Solve for x
    x = 37,451,356.95/8,487.98
  6. Step 6: Final answer
    x = 4,412.28

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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.