Home / 7,380.12-11,073.45-3,869.30

Finding the Fourth Proportional to 7,380.12, 11,073.45 and 3,869.30

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Solution

The fourth proportional to 7,380.12, 11,073.45 and 3,869.30 is: 5,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.12 : 11,073.45 = 3,869.30 : x
  2. Step 2: Convert to fraction form
    7,380.12/11,073.45 = 3,869.30/x
  3. Step 3: Cross multiply
    7,380.12x = 11,073.45 × 3,869.30
  4. Step 4: Simplify right side
    7,380.12x = 42,846,444.72
  5. Step 5: Solve for x
    x = 42,846,444.72/7,380.12
  6. Step 6: Final answer
    x = 5,805.66

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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.