Home / 16,979.48-25,479.12-7,117.88

Finding the Fourth Proportional to 16,979.48, 25,479.12 and 7,117.88

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Solution

The fourth proportional to 16,979.48, 25,479.12 and 7,117.88 is: 10,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.48 : 25,479.12 = 7,117.88 : x
  2. Step 2: Convert to fraction form
    16,979.48/25,479.12 = 7,117.88/x
  3. Step 3: Cross multiply
    16,979.48x = 25,479.12 × 7,117.88
  4. Step 4: Simplify right side
    16,979.48x = 181,357,318.67
  5. Step 5: Solve for x
    x = 181,357,318.67/16,979.48
  6. Step 6: Final answer
    x = 10,680.97

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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.