Home / 18,176.38-25,083.80-11,106.70

Finding the Fourth Proportional to 18,176.38, 25,083.80 and 11,106.70

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Solution

The fourth proportional to 18,176.38, 25,083.80 and 11,106.70 is: 15,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.38 : 25,083.80 = 11,106.70 : x
  2. Step 2: Convert to fraction form
    18,176.38/25,083.80 = 11,106.70/x
  3. Step 3: Cross multiply
    18,176.38x = 25,083.80 × 11,106.70
  4. Step 4: Simplify right side
    18,176.38x = 278,598,241.46
  5. Step 5: Solve for x
    x = 278,598,241.46/18,176.38
  6. Step 6: Final answer
    x = 15,327.49

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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.