Home / 19,169.10-28,764.45-7,480.80

Finding the Fourth Proportional to 19,169.10, 28,764.45 and 7,480.80

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Solution

The fourth proportional to 19,169.10, 28,764.45 and 7,480.80 is: 11,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.10 : 28,764.45 = 7,480.80 : x
  2. Step 2: Convert to fraction form
    19,169.10/28,764.45 = 7,480.80/x
  3. Step 3: Cross multiply
    19,169.10x = 28,764.45 × 7,480.80
  4. Step 4: Simplify right side
    19,169.10x = 215,181,097.56
  5. Step 5: Solve for x
    x = 215,181,097.56/19,169.10
  6. Step 6: Final answer
    x = 11,225.41

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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.