Home / 13,489.32-20,240.22-5,166.56

Finding the Fourth Proportional to 13,489.32, 20,240.22 and 5,166.56

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Solution

The fourth proportional to 13,489.32, 20,240.22 and 5,166.56 is: 7,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.32 : 20,240.22 = 5,166.56 : x
  2. Step 2: Convert to fraction form
    13,489.32/20,240.22 = 5,166.56/x
  3. Step 3: Cross multiply
    13,489.32x = 20,240.22 × 5,166.56
  4. Step 4: Simplify right side
    13,489.32x = 104,572,311.04
  5. Step 5: Solve for x
    x = 104,572,311.04/13,489.32
  6. Step 6: Final answer
    x = 7,752.23

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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.