Home / 12,509.80-18,759.16-3,743.04

Finding the Fourth Proportional to 12,509.80, 18,759.16 and 3,743.04

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Solution

The fourth proportional to 12,509.80, 18,759.16 and 3,743.04 is: 5,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.80 : 18,759.16 = 3,743.04 : x
  2. Step 2: Convert to fraction form
    12,509.80/18,759.16 = 3,743.04/x
  3. Step 3: Cross multiply
    12,509.80x = 18,759.16 × 3,743.04
  4. Step 4: Simplify right side
    12,509.80x = 70,216,286.25
  5. Step 5: Solve for x
    x = 70,216,286.25/12,509.80
  6. Step 6: Final answer
    x = 5,612.90

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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.