Home / 13,520.32-20,280.48-11,343.04

Finding the Fourth Proportional to 13,520.32, 20,280.48 and 11,343.04

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Solution

The fourth proportional to 13,520.32, 20,280.48 and 11,343.04 is: 17,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.32 : 20,280.48 = 11,343.04 : x
  2. Step 2: Convert to fraction form
    13,520.32/20,280.48 = 11,343.04/x
  3. Step 3: Cross multiply
    13,520.32x = 20,280.48 × 11,343.04
  4. Step 4: Simplify right side
    13,520.32x = 230,042,295.86
  5. Step 5: Solve for x
    x = 230,042,295.86/13,520.32
  6. Step 6: Final answer
    x = 17,014.56

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Double scale
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Similar ratio
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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.