Home / 18,711.61-25,825.70-11,154.14

Finding the Fourth Proportional to 18,711.61, 25,825.70 and 11,154.14

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Solution

The fourth proportional to 18,711.61, 25,825.70 and 11,154.14 is: 15,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.61 : 25,825.70 = 11,154.14 : x
  2. Step 2: Convert to fraction form
    18,711.61/25,825.70 = 11,154.14/x
  3. Step 3: Cross multiply
    18,711.61x = 25,825.70 × 11,154.14
  4. Step 4: Simplify right side
    18,711.61x = 288,063,469.00
  5. Step 5: Solve for x
    x = 288,063,469.00/18,711.61
  6. Step 6: Final answer
    x = 15,394.91

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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.