Home / 10,226.28-15,309.66-7,640.04

Finding the Fourth Proportional to 10,226.28, 15,309.66 and 7,640.04

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Solution

The fourth proportional to 10,226.28, 15,309.66 and 7,640.04 is: 11,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,226.28 : 15,309.66 = 7,640.04 : x
  2. Step 2: Convert to fraction form
    10,226.28/15,309.66 = 7,640.04/x
  3. Step 3: Cross multiply
    10,226.28x = 15,309.66 × 7,640.04
  4. Step 4: Simplify right side
    10,226.28x = 116,966,414.79
  5. Step 5: Solve for x
    x = 116,966,414.79/10,226.28
  6. Step 6: Final answer
    x = 11,437.83

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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.