Home / 13,837.28-20,765.88-5,512.47

Finding the Fourth Proportional to 13,837.28, 20,765.88 and 5,512.47

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Solution

The fourth proportional to 13,837.28, 20,765.88 and 5,512.47 is: 8,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.28 : 20,765.88 = 5,512.47 : x
  2. Step 2: Convert to fraction form
    13,837.28/20,765.88 = 5,512.47/x
  3. Step 3: Cross multiply
    13,837.28x = 20,765.88 × 5,512.47
  4. Step 4: Simplify right side
    13,837.28x = 114,471,290.52
  5. Step 5: Solve for x
    x = 114,471,290.52/13,837.28
  6. Step 6: Final answer
    x = 8,272.68

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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.