Home / 18,252.25-25,188.12-9,868.75

Finding the Fourth Proportional to 18,252.25, 25,188.12 and 9,868.75

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Solution

The fourth proportional to 18,252.25, 25,188.12 and 9,868.75 is: 13,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.25 : 25,188.12 = 9,868.75 : x
  2. Step 2: Convert to fraction form
    18,252.25/25,188.12 = 9,868.75/x
  3. Step 3: Cross multiply
    18,252.25x = 25,188.12 × 9,868.75
  4. Step 4: Simplify right side
    18,252.25x = 248,575,209.91
  5. Step 5: Solve for x
    x = 248,575,209.91/18,252.25
  6. Step 6: Final answer
    x = 13,618.88

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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.