Home / 7,677.28-11,518.26-3,982.15

Finding the Fourth Proportional to 7,677.28, 11,518.26 and 3,982.15

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Solution

The fourth proportional to 7,677.28, 11,518.26 and 3,982.15 is: 5,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.28 : 11,518.26 = 3,982.15 : x
  2. Step 2: Convert to fraction form
    7,677.28/11,518.26 = 3,982.15/x
  3. Step 3: Cross multiply
    7,677.28x = 11,518.26 × 3,982.15
  4. Step 4: Simplify right side
    7,677.28x = 45,867,439.06
  5. Step 5: Solve for x
    x = 45,867,439.06/7,677.28
  6. Step 6: Final answer
    x = 5,974.44

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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.