Home / 6,618.32-9,132.11-4,379.38

Finding the Fourth Proportional to 6,618.32, 9,132.11 and 4,379.38

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Solution

The fourth proportional to 6,618.32, 9,132.11 and 4,379.38 is: 6,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.32 : 9,132.11 = 4,379.38 : x
  2. Step 2: Convert to fraction form
    6,618.32/9,132.11 = 4,379.38/x
  3. Step 3: Cross multiply
    6,618.32x = 9,132.11 × 4,379.38
  4. Step 4: Simplify right side
    6,618.32x = 39,992,951.59
  5. Step 5: Solve for x
    x = 39,992,951.59/6,618.32
  6. Step 6: Final answer
    x = 6,042.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.