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Finding the Fourth Proportional to 18,510.88, 27,766.85 and 7,265.75

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Solution

The fourth proportional to 18,510.88, 27,766.85 and 7,265.75 is: 10,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.88 : 27,766.85 = 7,265.75 : x
  2. Step 2: Convert to fraction form
    18,510.88/27,766.85 = 7,265.75/x
  3. Step 3: Cross multiply
    18,510.88x = 27,766.85 × 7,265.75
  4. Step 4: Simplify right side
    18,510.88x = 201,747,012.28
  5. Step 5: Solve for x
    x = 201,747,012.28/18,510.88
  6. Step 6: Final answer
    x = 10,898.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.