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Finding the Fourth Proportional to 10,187.96, 15,311.46 and 6,747.08

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Solution

The fourth proportional to 10,187.96, 15,311.46 and 6,747.08 is: 10,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.96 : 15,311.46 = 6,747.08 : x
  2. Step 2: Convert to fraction form
    10,187.96/15,311.46 = 6,747.08/x
  3. Step 3: Cross multiply
    10,187.96x = 15,311.46 × 6,747.08
  4. Step 4: Simplify right side
    10,187.96x = 103,307,645.54
  5. Step 5: Solve for x
    x = 103,307,645.54/10,187.96
  6. Step 6: Final answer
    x = 10,140.17

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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.