Home / 8,918.44-13,385.79-3,657.15

Finding the Fourth Proportional to 8,918.44, 13,385.79 and 3,657.15

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Solution

The fourth proportional to 8,918.44, 13,385.79 and 3,657.15 is: 5,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.44 : 13,385.79 = 3,657.15 : x
  2. Step 2: Convert to fraction form
    8,918.44/13,385.79 = 3,657.15/x
  3. Step 3: Cross multiply
    8,918.44x = 13,385.79 × 3,657.15
  4. Step 4: Simplify right side
    8,918.44x = 48,953,841.90
  5. Step 5: Solve for x
    x = 48,953,841.90/8,918.44
  6. Step 6: Final answer
    x = 5,489.06

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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.