Home / 10,117.41-13,979.18-7,279.17

Finding the Fourth Proportional to 10,117.41, 13,979.18 and 7,279.17

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Solution

The fourth proportional to 10,117.41, 13,979.18 and 7,279.17 is: 10,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.41 : 13,979.18 = 7,279.17 : x
  2. Step 2: Convert to fraction form
    10,117.41/13,979.18 = 7,279.17/x
  3. Step 3: Cross multiply
    10,117.41x = 13,979.18 × 7,279.17
  4. Step 4: Simplify right side
    10,117.41x = 101,756,793.46
  5. Step 5: Solve for x
    x = 101,756,793.46/10,117.41
  6. Step 6: Final answer
    x = 10,057.60

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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.