Home / 9,982.20-13,774.50-5,790

Finding the Fourth Proportional to 9,982.20, 13,774.50 and 5,790

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Solution

The fourth proportional to 9,982.20, 13,774.50 and 5,790 is: 7,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.20 : 13,774.50 = 5,790 : x
  2. Step 2: Convert to fraction form
    9,982.20/13,774.50 = 5,790/x
  3. Step 3: Cross multiply
    9,982.20x = 13,774.50 × 5,790
  4. Step 4: Simplify right side
    9,982.20x = 79,754,355
  5. Step 5: Solve for x
    x = 79,754,355/9,982.20
  6. Step 6: Final answer
    x = 7,989.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.