Home / 10,086.18-13,920.45-7,262.88

Finding the Fourth Proportional to 10,086.18, 13,920.45 and 7,262.88

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Solution

The fourth proportional to 10,086.18, 13,920.45 and 7,262.88 is: 10,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,086.18 : 13,920.45 = 7,262.88 : x
  2. Step 2: Convert to fraction form
    10,086.18/13,920.45 = 7,262.88/x
  3. Step 3: Cross multiply
    10,086.18x = 13,920.45 × 7,262.88
  4. Step 4: Simplify right side
    10,086.18x = 101,102,557.90
  5. Step 5: Solve for x
    x = 101,102,557.90/10,086.18
  6. Step 6: Final answer
    x = 10,023.87

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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.