Home / 18,280.72-27,422.46-5,134.12

Finding the Fourth Proportional to 18,280.72, 27,422.46 and 5,134.12

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Solution

The fourth proportional to 18,280.72, 27,422.46 and 5,134.12 is: 7,701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.72 : 27,422.46 = 5,134.12 : x
  2. Step 2: Convert to fraction form
    18,280.72/27,422.46 = 5,134.12/x
  3. Step 3: Cross multiply
    18,280.72x = 27,422.46 × 5,134.12
  4. Step 4: Simplify right side
    18,280.72x = 140,790,200.34
  5. Step 5: Solve for x
    x = 140,790,200.34/18,280.72
  6. Step 6: Final answer
    x = 7,701.57

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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.