Home / 13,543.09-20,316.54-4,183.90

Finding the Fourth Proportional to 13,543.09, 20,316.54 and 4,183.90

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Solution

The fourth proportional to 13,543.09, 20,316.54 and 4,183.90 is: 6,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.09 : 20,316.54 = 4,183.90 : x
  2. Step 2: Convert to fraction form
    13,543.09/20,316.54 = 4,183.90/x
  3. Step 3: Cross multiply
    13,543.09x = 20,316.54 × 4,183.90
  4. Step 4: Simplify right side
    13,543.09x = 85,002,371.71
  5. Step 5: Solve for x
    x = 85,002,371.71/13,543.09
  6. Step 6: Final answer
    x = 6,276.44

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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.