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Finding the Fourth Proportional to 8,477.68, 12,714.96 and 3,546

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Solution

The fourth proportional to 8,477.68, 12,714.96 and 3,546 is: 5,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.68 : 12,714.96 = 3,546 : x
  2. Step 2: Convert to fraction form
    8,477.68/12,714.96 = 3,546/x
  3. Step 3: Cross multiply
    8,477.68x = 12,714.96 × 3,546
  4. Step 4: Simplify right side
    8,477.68x = 45,087,248.16
  5. Step 5: Solve for x
    x = 45,087,248.16/8,477.68
  6. Step 6: Final answer
    x = 5,318.35

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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.