Home / 13,329.14-19,982.90-5,543.78

Finding the Fourth Proportional to 13,329.14, 19,982.90 and 5,543.78

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Solution

The fourth proportional to 13,329.14, 19,982.90 and 5,543.78 is: 8,311.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.14 : 19,982.90 = 5,543.78 : x
  2. Step 2: Convert to fraction form
    13,329.14/19,982.90 = 5,543.78/x
  3. Step 3: Cross multiply
    13,329.14x = 19,982.90 × 5,543.78
  4. Step 4: Simplify right side
    13,329.14x = 110,780,715.31
  5. Step 5: Solve for x
    x = 110,780,715.31/13,329.14
  6. Step 6: Final answer
    x = 8,311.17

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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.