Home / 6,876.39-9,487.25-4,042.86

Finding the Fourth Proportional to 6,876.39, 9,487.25 and 4,042.86

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Solution

The fourth proportional to 6,876.39, 9,487.25 and 4,042.86 is: 5,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.39 : 9,487.25 = 4,042.86 : x
  2. Step 2: Convert to fraction form
    6,876.39/9,487.25 = 4,042.86/x
  3. Step 3: Cross multiply
    6,876.39x = 9,487.25 × 4,042.86
  4. Step 4: Simplify right side
    6,876.39x = 38,355,623.54
  5. Step 5: Solve for x
    x = 38,355,623.54/6,876.39
  6. Step 6: Final answer
    x = 5,577.87

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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.