Home / 10,318.19-15,375.62-9,983.66

Finding the Fourth Proportional to 10,318.19, 15,375.62 and 9,983.66

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Solution

The fourth proportional to 10,318.19, 15,375.62 and 9,983.66 is: 14,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.19 : 15,375.62 = 9,983.66 : x
  2. Step 2: Convert to fraction form
    10,318.19/15,375.62 = 9,983.66/x
  3. Step 3: Cross multiply
    10,318.19x = 15,375.62 × 9,983.66
  4. Step 4: Simplify right side
    10,318.19x = 153,504,910.45
  5. Step 5: Solve for x
    x = 153,504,910.45/10,318.19
  6. Step 6: Final answer
    x = 14,877.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.