Home / 13,328.76-19,982.34-5,543.40

Finding the Fourth Proportional to 13,328.76, 19,982.34 and 5,543.40

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Solution

The fourth proportional to 13,328.76, 19,982.34 and 5,543.40 is: 8,310.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.76 : 19,982.34 = 5,543.40 : x
  2. Step 2: Convert to fraction form
    13,328.76/19,982.34 = 5,543.40/x
  3. Step 3: Cross multiply
    13,328.76x = 19,982.34 × 5,543.40
  4. Step 4: Simplify right side
    13,328.76x = 110,770,103.56
  5. Step 5: Solve for x
    x = 110,770,103.56/13,328.76
  6. Step 6: Final answer
    x = 8,310.61

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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.