Home / 11,517.32-17,186.13-10,276.20

Finding the Fourth Proportional to 11,517.32, 17,186.13 and 10,276.20

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Solution

The fourth proportional to 11,517.32, 17,186.13 and 10,276.20 is: 15,334.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.32 : 17,186.13 = 10,276.20 : x
  2. Step 2: Convert to fraction form
    11,517.32/17,186.13 = 10,276.20/x
  3. Step 3: Cross multiply
    11,517.32x = 17,186.13 × 10,276.20
  4. Step 4: Simplify right side
    11,517.32x = 176,608,109.11
  5. Step 5: Solve for x
    x = 176,608,109.11/11,517.32
  6. Step 6: Final answer
    x = 15,334.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.