Home / 13,456.28-20,166.80-5,549.59

Finding the Fourth Proportional to 13,456.28, 20,166.80 and 5,549.59

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Solution

The fourth proportional to 13,456.28, 20,166.80 and 5,549.59 is: 8,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.28 : 20,166.80 = 5,549.59 : x
  2. Step 2: Convert to fraction form
    13,456.28/20,166.80 = 5,549.59/x
  3. Step 3: Cross multiply
    13,456.28x = 20,166.80 × 5,549.59
  4. Step 4: Simplify right side
    13,456.28x = 111,917,469.07
  5. Step 5: Solve for x
    x = 111,917,469.07/13,456.28
  6. Step 6: Final answer
    x = 8,317.12

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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.