Home / 18,189.18-25,107.71-11,479.19

Finding the Fourth Proportional to 18,189.18, 25,107.71 and 11,479.19

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Solution

The fourth proportional to 18,189.18, 25,107.71 and 11,479.19 is: 15,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.18 : 25,107.71 = 11,479.19 : x
  2. Step 2: Convert to fraction form
    18,189.18/25,107.71 = 11,479.19/x
  3. Step 3: Cross multiply
    18,189.18x = 25,107.71 × 11,479.19
  4. Step 4: Simplify right side
    18,189.18x = 288,215,990.62
  5. Step 5: Solve for x
    x = 288,215,990.62/18,189.18
  6. Step 6: Final answer
    x = 15,845.46

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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.