Home / 18,110.81-24,987.42-11,403.14

Finding the Fourth Proportional to 18,110.81, 24,987.42 and 11,403.14

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Solution

The fourth proportional to 18,110.81, 24,987.42 and 11,403.14 is: 15,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.81 : 24,987.42 = 11,403.14 : x
  2. Step 2: Convert to fraction form
    18,110.81/24,987.42 = 11,403.14/x
  3. Step 3: Cross multiply
    18,110.81x = 24,987.42 × 11,403.14
  4. Step 4: Simplify right side
    18,110.81x = 284,934,923.56
  5. Step 5: Solve for x
    x = 284,934,923.56/18,110.81
  6. Step 6: Final answer
    x = 15,732.86

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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.