Home / 18,255.32-25,192.35-9,871.82

Finding the Fourth Proportional to 18,255.32, 25,192.35 and 9,871.82

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Solution

The fourth proportional to 18,255.32, 25,192.35 and 9,871.82 is: 13,623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.32 : 25,192.35 = 9,871.82 : x
  2. Step 2: Convert to fraction form
    18,255.32/25,192.35 = 9,871.82/x
  3. Step 3: Cross multiply
    18,255.32x = 25,192.35 × 9,871.82
  4. Step 4: Simplify right side
    18,255.32x = 248,694,218.62
  5. Step 5: Solve for x
    x = 248,694,218.62/18,255.32
  6. Step 6: Final answer
    x = 13,623.11

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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.