Home / 13,517.88-20,276.82-3,657.93

Finding the Fourth Proportional to 13,517.88, 20,276.82 and 3,657.93

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Solution

The fourth proportional to 13,517.88, 20,276.82 and 3,657.93 is: 5,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.88 : 20,276.82 = 3,657.93 : x
  2. Step 2: Convert to fraction form
    13,517.88/20,276.82 = 3,657.93/x
  3. Step 3: Cross multiply
    13,517.88x = 20,276.82 × 3,657.93
  4. Step 4: Simplify right side
    13,517.88x = 74,171,077.65
  5. Step 5: Solve for x
    x = 74,171,077.65/13,517.88
  6. Step 6: Final answer
    x = 5,486.89

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1.5x scale

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.