Home / 13,542.55-20,306.38-4,179.99

Finding the Fourth Proportional to 13,542.55, 20,306.38 and 4,179.99

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Solution

The fourth proportional to 13,542.55, 20,306.38 and 4,179.99 is: 6,267.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.55 : 20,306.38 = 4,179.99 : x
  2. Step 2: Convert to fraction form
    13,542.55/20,306.38 = 4,179.99/x
  3. Step 3: Cross multiply
    13,542.55x = 20,306.38 × 4,179.99
  4. Step 4: Simplify right side
    13,542.55x = 84,880,465.34
  5. Step 5: Solve for x
    x = 84,880,465.34/13,542.55
  6. Step 6: Final answer
    x = 6,267.69

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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.