Home / 8,680.82-11,979.54-4,701.92

Finding the Fourth Proportional to 8,680.82, 11,979.54 and 4,701.92

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Solution

The fourth proportional to 8,680.82, 11,979.54 and 4,701.92 is: 6,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.82 : 11,979.54 = 4,701.92 : x
  2. Step 2: Convert to fraction form
    8,680.82/11,979.54 = 4,701.92/x
  3. Step 3: Cross multiply
    8,680.82x = 11,979.54 × 4,701.92
  4. Step 4: Simplify right side
    8,680.82x = 56,326,815.21
  5. Step 5: Solve for x
    x = 56,326,815.21/8,680.82
  6. Step 6: Final answer
    x = 6,488.65

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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.