Home / 13,742.28-18,963.82-7,454.52

Finding the Fourth Proportional to 13,742.28, 18,963.82 and 7,454.52

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Solution

The fourth proportional to 13,742.28, 18,963.82 and 7,454.52 is: 10,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.28 : 18,963.82 = 7,454.52 : x
  2. Step 2: Convert to fraction form
    13,742.28/18,963.82 = 7,454.52/x
  3. Step 3: Cross multiply
    13,742.28x = 18,963.82 × 7,454.52
  4. Step 4: Simplify right side
    13,742.28x = 141,366,175.47
  5. Step 5: Solve for x
    x = 141,366,175.47/13,742.28
  6. Step 6: Final answer
    x = 10,286.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.