Home / 12,761.28-19,141.68-6,954.84

Finding the Fourth Proportional to 12,761.28, 19,141.68 and 6,954.84

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Solution

The fourth proportional to 12,761.28, 19,141.68 and 6,954.84 is: 10,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.28 : 19,141.68 = 6,954.84 : x
  2. Step 2: Convert to fraction form
    12,761.28/19,141.68 = 6,954.84/x
  3. Step 3: Cross multiply
    12,761.28x = 19,141.68 × 6,954.84
  4. Step 4: Simplify right side
    12,761.28x = 133,127,321.73
  5. Step 5: Solve for x
    x = 133,127,321.73/12,761.28
  6. Step 6: Final answer
    x = 10,432.13

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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.