Home / 8,979.17-13,456.87-6,891.19

Finding the Fourth Proportional to 8,979.17, 13,456.87 and 6,891.19

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Solution

The fourth proportional to 8,979.17, 13,456.87 and 6,891.19 is: 10,327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.17 : 13,456.87 = 6,891.19 : x
  2. Step 2: Convert to fraction form
    8,979.17/13,456.87 = 6,891.19/x
  3. Step 3: Cross multiply
    8,979.17x = 13,456.87 × 6,891.19
  4. Step 4: Simplify right side
    8,979.17x = 92,733,797.11
  5. Step 5: Solve for x
    x = 92,733,797.11/8,979.17
  6. Step 6: Final answer
    x = 10,327.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.