Home / 7,677.28-11,518.08-2,747.62

Finding the Fourth Proportional to 7,677.28, 11,518.08 and 2,747.62

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Solution

The fourth proportional to 7,677.28, 11,518.08 and 2,747.62 is: 4,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.28 : 11,518.08 = 2,747.62 : x
  2. Step 2: Convert to fraction form
    7,677.28/11,518.08 = 2,747.62/x
  3. Step 3: Cross multiply
    7,677.28x = 11,518.08 × 2,747.62
  4. Step 4: Simplify right side
    7,677.28x = 31,647,306.97
  5. Step 5: Solve for x
    x = 31,647,306.97/7,677.28
  6. Step 6: Final answer
    x = 4,122.20

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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.