Home / 10,731.40-16,079.82-6,618.76

Finding the Fourth Proportional to 10,731.40, 16,079.82 and 6,618.76

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Solution

The fourth proportional to 10,731.40, 16,079.82 and 6,618.76 is: 9,917.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,731.40 : 16,079.82 = 6,618.76 : x
  2. Step 2: Convert to fraction form
    10,731.40/16,079.82 = 6,618.76/x
  3. Step 3: Cross multiply
    10,731.40x = 16,079.82 × 6,618.76
  4. Step 4: Simplify right side
    10,731.40x = 106,428,469.42
  5. Step 5: Solve for x
    x = 106,428,469.42/10,731.40
  6. Step 6: Final answer
    x = 9,917.48

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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.