Home / 13,778.06-20,654.73-5,452.47

Finding the Fourth Proportional to 13,778.06, 20,654.73 and 5,452.47

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Solution

The fourth proportional to 13,778.06, 20,654.73 and 5,452.47 is: 8,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.06 : 20,654.73 = 5,452.47 : x
  2. Step 2: Convert to fraction form
    13,778.06/20,654.73 = 5,452.47/x
  3. Step 3: Cross multiply
    13,778.06x = 20,654.73 × 5,452.47
  4. Step 4: Simplify right side
    13,778.06x = 112,619,295.68
  5. Step 5: Solve for x
    x = 112,619,295.68/13,778.06
  6. Step 6: Final answer
    x = 8,173.82

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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.