Home / 18,255.26-25,192.13-9,871.76

Finding the Fourth Proportional to 18,255.26, 25,192.13 and 9,871.76

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Solution

The fourth proportional to 18,255.26, 25,192.13 and 9,871.76 is: 13,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.26 : 25,192.13 = 9,871.76 : x
  2. Step 2: Convert to fraction form
    18,255.26/25,192.13 = 9,871.76/x
  3. Step 3: Cross multiply
    18,255.26x = 25,192.13 × 9,871.76
  4. Step 4: Simplify right side
    18,255.26x = 248,690,485.93
  5. Step 5: Solve for x
    x = 248,690,485.93/18,255.26
  6. Step 6: Final answer
    x = 13,622.95

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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.