Home / 18,255.58-25,192.78-9,872.08

Finding the Fourth Proportional to 18,255.58, 25,192.78 and 9,872.08

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Solution

The fourth proportional to 18,255.58, 25,192.78 and 9,872.08 is: 13,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.58 : 25,192.78 = 9,872.08 : x
  2. Step 2: Convert to fraction form
    18,255.58/25,192.78 = 9,872.08/x
  3. Step 3: Cross multiply
    18,255.58x = 25,192.78 × 9,872.08
  4. Step 4: Simplify right side
    18,255.58x = 248,705,139.58
  5. Step 5: Solve for x
    x = 248,705,139.58/18,255.58
  6. Step 6: Final answer
    x = 13,623.51

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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.