Home / 18,255.62-25,192.75-9,872.12

Finding the Fourth Proportional to 18,255.62, 25,192.75 and 9,872.12

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Solution

The fourth proportional to 18,255.62, 25,192.75 and 9,872.12 is: 13,623.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.62 : 25,192.75 = 9,872.12 : x
  2. Step 2: Convert to fraction form
    18,255.62/25,192.75 = 9,872.12/x
  3. Step 3: Cross multiply
    18,255.62x = 25,192.75 × 9,872.12
  4. Step 4: Simplify right side
    18,255.62x = 248,705,851.13
  5. Step 5: Solve for x
    x = 248,705,851.13/18,255.62
  6. Step 6: Final answer
    x = 13,623.52

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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.