Home / 8,680.67-11,979.17-4,701.74

Finding the Fourth Proportional to 8,680.67, 11,979.17 and 4,701.74

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Solution

The fourth proportional to 8,680.67, 11,979.17 and 4,701.74 is: 6,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.67 : 11,979.17 = 4,701.74 : x
  2. Step 2: Convert to fraction form
    8,680.67/11,979.17 = 4,701.74/x
  3. Step 3: Cross multiply
    8,680.67x = 11,979.17 × 4,701.74
  4. Step 4: Simplify right side
    8,680.67x = 56,322,942.76
  5. Step 5: Solve for x
    x = 56,322,942.76/8,680.67
  6. Step 6: Final answer
    x = 6,488.32

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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.