Home / 10,332.78-15,500.62-3,311.15

Finding the Fourth Proportional to 10,332.78, 15,500.62 and 3,311.15

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Solution

The fourth proportional to 10,332.78, 15,500.62 and 3,311.15 is: 4,967.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,332.78 : 15,500.62 = 3,311.15 : x
  2. Step 2: Convert to fraction form
    10,332.78/15,500.62 = 3,311.15/x
  3. Step 3: Cross multiply
    10,332.78x = 15,500.62 × 3,311.15
  4. Step 4: Simplify right side
    10,332.78x = 51,324,800.41
  5. Step 5: Solve for x
    x = 51,324,800.41/10,332.78
  6. Step 6: Final answer
    x = 4,967.18

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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.