Home / 10,286.73-15,434.96-10,120.91

Finding the Fourth Proportional to 10,286.73, 15,434.96 and 10,120.91

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Solution

The fourth proportional to 10,286.73, 15,434.96 and 10,120.91 is: 15,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.73 : 15,434.96 = 10,120.91 : x
  2. Step 2: Convert to fraction form
    10,286.73/15,434.96 = 10,120.91/x
  3. Step 3: Cross multiply
    10,286.73x = 15,434.96 × 10,120.91
  4. Step 4: Simplify right side
    10,286.73x = 156,215,713.23
  5. Step 5: Solve for x
    x = 156,215,713.23/10,286.73
  6. Step 6: Final answer
    x = 15,186.14

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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.