Home / 10,616.60-15,932.46-4,778.12

Finding the Fourth Proportional to 10,616.60, 15,932.46 and 4,778.12

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Solution

The fourth proportional to 10,616.60, 15,932.46 and 4,778.12 is: 7,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.60 : 15,932.46 = 4,778.12 : x
  2. Step 2: Convert to fraction form
    10,616.60/15,932.46 = 4,778.12/x
  3. Step 3: Cross multiply
    10,616.60x = 15,932.46 × 4,778.12
  4. Step 4: Simplify right side
    10,616.60x = 76,127,205.78
  5. Step 5: Solve for x
    x = 76,127,205.78/10,616.60
  6. Step 6: Final answer
    x = 7,170.58

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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.