Home / 8,680.62-11,979.29-4,701.75

Finding the Fourth Proportional to 8,680.62, 11,979.29 and 4,701.75

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Solution

The fourth proportional to 8,680.62, 11,979.29 and 4,701.75 is: 6,488.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.62 : 11,979.29 = 4,701.75 : x
  2. Step 2: Convert to fraction form
    8,680.62/11,979.29 = 4,701.75/x
  3. Step 3: Cross multiply
    8,680.62x = 11,979.29 × 4,701.75
  4. Step 4: Simplify right side
    8,680.62x = 56,323,593.59
  5. Step 5: Solve for x
    x = 56,323,593.59/8,680.62
  6. Step 6: Final answer
    x = 6,488.43

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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.