Home / 7,472.86-11,179.05-6,242.74

Finding the Fourth Proportional to 7,472.86, 11,179.05 and 6,242.74

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Solution

The fourth proportional to 7,472.86, 11,179.05 and 6,242.74 is: 9,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.86 : 11,179.05 = 6,242.74 : x
  2. Step 2: Convert to fraction form
    7,472.86/11,179.05 = 6,242.74/x
  3. Step 3: Cross multiply
    7,472.86x = 11,179.05 × 6,242.74
  4. Step 4: Simplify right side
    7,472.86x = 69,787,902.60
  5. Step 5: Solve for x
    x = 69,787,902.60/7,472.86
  6. Step 6: Final answer
    x = 9,338.85

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1.5x scale

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.