Home / 13,518.52-20,280.96-6,122.95

Finding the Fourth Proportional to 13,518.52, 20,280.96 and 6,122.95

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Solution

The fourth proportional to 13,518.52, 20,280.96 and 6,122.95 is: 9,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.52 : 20,280.96 = 6,122.95 : x
  2. Step 2: Convert to fraction form
    13,518.52/20,280.96 = 6,122.95/x
  3. Step 3: Cross multiply
    13,518.52x = 20,280.96 × 6,122.95
  4. Step 4: Simplify right side
    13,518.52x = 124,179,304.03
  5. Step 5: Solve for x
    x = 124,179,304.03/13,518.52
  6. Step 6: Final answer
    x = 9,185.87

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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.