Home / 13,541.89-20,319.91-5,542.59

Finding the Fourth Proportional to 13,541.89, 20,319.91 and 5,542.59

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Solution

The fourth proportional to 13,541.89, 20,319.91 and 5,542.59 is: 8,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.89 : 20,319.91 = 5,542.59 : x
  2. Step 2: Convert to fraction form
    13,541.89/20,319.91 = 5,542.59/x
  3. Step 3: Cross multiply
    13,541.89x = 20,319.91 × 5,542.59
  4. Step 4: Simplify right side
    13,541.89x = 112,624,929.97
  5. Step 5: Solve for x
    x = 112,624,929.97/13,541.89
  6. Step 6: Final answer
    x = 8,316.78

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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.