Home / 18,425.86-25,427.69-10,872.27

Finding the Fourth Proportional to 18,425.86, 25,427.69 and 10,872.27

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Solution

The fourth proportional to 18,425.86, 25,427.69 and 10,872.27 is: 15,003.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.86 : 25,427.69 = 10,872.27 : x
  2. Step 2: Convert to fraction form
    18,425.86/25,427.69 = 10,872.27/x
  3. Step 3: Cross multiply
    18,425.86x = 25,427.69 × 10,872.27
  4. Step 4: Simplify right side
    18,425.86x = 276,456,711.16
  5. Step 5: Solve for x
    x = 276,456,711.16/18,425.86
  6. Step 6: Final answer
    x = 15,003.73

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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.