Home / 10,091.28-15,141.78-4,247.13

Finding the Fourth Proportional to 10,091.28, 15,141.78 and 4,247.13

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Solution

The fourth proportional to 10,091.28, 15,141.78 and 4,247.13 is: 6,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.28 : 15,141.78 = 4,247.13 : x
  2. Step 2: Convert to fraction form
    10,091.28/15,141.78 = 4,247.13/x
  3. Step 3: Cross multiply
    10,091.28x = 15,141.78 × 4,247.13
  4. Step 4: Simplify right side
    10,091.28x = 64,309,108.09
  5. Step 5: Solve for x
    x = 64,309,108.09/10,091.28
  6. Step 6: Final answer
    x = 6,372.74

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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.