Home / 9,905.11-14,876.17-8,719.57

Finding the Fourth Proportional to 9,905.11, 14,876.17 and 8,719.57

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Solution

The fourth proportional to 9,905.11, 14,876.17 and 8,719.57 is: 13,095.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.11 : 14,876.17 = 8,719.57 : x
  2. Step 2: Convert to fraction form
    9,905.11/14,876.17 = 8,719.57/x
  3. Step 3: Cross multiply
    9,905.11x = 14,876.17 × 8,719.57
  4. Step 4: Simplify right side
    9,905.11x = 129,713,793.79
  5. Step 5: Solve for x
    x = 129,713,793.79/9,905.11
  6. Step 6: Final answer
    x = 13,095.65

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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.