Home / 6,876.18-9,490.05-4,081.86

Finding the Fourth Proportional to 6,876.18, 9,490.05 and 4,081.86

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Solution

The fourth proportional to 6,876.18, 9,490.05 and 4,081.86 is: 5,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.18 : 9,490.05 = 4,081.86 : x
  2. Step 2: Convert to fraction form
    6,876.18/9,490.05 = 4,081.86/x
  3. Step 3: Cross multiply
    6,876.18x = 9,490.05 × 4,081.86
  4. Step 4: Simplify right side
    6,876.18x = 38,737,055.49
  5. Step 5: Solve for x
    x = 38,737,055.49/6,876.18
  6. Step 6: Final answer
    x = 5,633.51

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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.