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Finding the Fourth Proportional to 9,918.43, 14,878.86 and 4,373.17

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Solution

The fourth proportional to 9,918.43, 14,878.86 and 4,373.17 is: 6,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.43 : 14,878.86 = 4,373.17 : x
  2. Step 2: Convert to fraction form
    9,918.43/14,878.86 = 4,373.17/x
  3. Step 3: Cross multiply
    9,918.43x = 14,878.86 × 4,373.17
  4. Step 4: Simplify right side
    9,918.43x = 65,067,709.79
  5. Step 5: Solve for x
    x = 65,067,709.79/9,918.43
  6. Step 6: Final answer
    x = 6,560.29

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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.