Home / 12,469.59-18,707.91-5,079.36

Finding the Fourth Proportional to 12,469.59, 18,707.91 and 5,079.36

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Solution

The fourth proportional to 12,469.59, 18,707.91 and 5,079.36 is: 7,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.59 : 18,707.91 = 5,079.36 : x
  2. Step 2: Convert to fraction form
    12,469.59/18,707.91 = 5,079.36/x
  3. Step 3: Cross multiply
    12,469.59x = 18,707.91 × 5,079.36
  4. Step 4: Simplify right side
    12,469.59x = 95,024,209.74
  5. Step 5: Solve for x
    x = 95,024,209.74/12,469.59
  6. Step 6: Final answer
    x = 7,620.48

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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.