Home / 7,781.36-11,679.33-3,624.24

Finding the Fourth Proportional to 7,781.36, 11,679.33 and 3,624.24

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Solution

The fourth proportional to 7,781.36, 11,679.33 and 3,624.24 is: 5,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.36 : 11,679.33 = 3,624.24 : x
  2. Step 2: Convert to fraction form
    7,781.36/11,679.33 = 3,624.24/x
  3. Step 3: Cross multiply
    7,781.36x = 11,679.33 × 3,624.24
  4. Step 4: Simplify right side
    7,781.36x = 42,328,694.96
  5. Step 5: Solve for x
    x = 42,328,694.96/7,781.36
  6. Step 6: Final answer
    x = 5,439.76

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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.