Home / 18,674.17-25,765.25-13,002.55

Finding the Fourth Proportional to 18,674.17, 25,765.25 and 13,002.55

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Solution

The fourth proportional to 18,674.17, 25,765.25 and 13,002.55 is: 17,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.17 : 25,765.25 = 13,002.55 : x
  2. Step 2: Convert to fraction form
    18,674.17/25,765.25 = 13,002.55/x
  3. Step 3: Cross multiply
    18,674.17x = 25,765.25 × 13,002.55
  4. Step 4: Simplify right side
    18,674.17x = 335,013,821.96
  5. Step 5: Solve for x
    x = 335,013,821.96/18,674.17
  6. Step 6: Final answer
    x = 17,939.96

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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.