Home / 13,494.38-20,247.42-7,247.10

Finding the Fourth Proportional to 13,494.38, 20,247.42 and 7,247.10

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Solution

The fourth proportional to 13,494.38, 20,247.42 and 7,247.10 is: 10,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.38 : 20,247.42 = 7,247.10 : x
  2. Step 2: Convert to fraction form
    13,494.38/20,247.42 = 7,247.10/x
  3. Step 3: Cross multiply
    13,494.38x = 20,247.42 × 7,247.10
  4. Step 4: Simplify right side
    13,494.38x = 146,735,139.82
  5. Step 5: Solve for x
    x = 146,735,139.82/13,494.38
  6. Step 6: Final answer
    x = 10,873.80

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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.