Home / 18,275.16-25,219.71-9,891.66

Finding the Fourth Proportional to 18,275.16, 25,219.71 and 9,891.66

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Solution

The fourth proportional to 18,275.16, 25,219.71 and 9,891.66 is: 13,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.16 : 25,219.71 = 9,891.66 : x
  2. Step 2: Convert to fraction form
    18,275.16/25,219.71 = 9,891.66/x
  3. Step 3: Cross multiply
    18,275.16x = 25,219.71 × 9,891.66
  4. Step 4: Simplify right side
    18,275.16x = 249,464,796.62
  5. Step 5: Solve for x
    x = 249,464,796.62/18,275.16
  6. Step 6: Final answer
    x = 13,650.48

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Similar ratio
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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.