Home / 19,261.33-28,869.72-8,151.37

Finding the Fourth Proportional to 19,261.33, 28,869.72 and 8,151.37

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Solution

The fourth proportional to 19,261.33, 28,869.72 and 8,151.37 is: 12,217.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.33 : 28,869.72 = 8,151.37 : x
  2. Step 2: Convert to fraction form
    19,261.33/28,869.72 = 8,151.37/x
  3. Step 3: Cross multiply
    19,261.33x = 28,869.72 × 8,151.37
  4. Step 4: Simplify right side
    19,261.33x = 235,327,769.52
  5. Step 5: Solve for x
    x = 235,327,769.52/19,261.33
  6. Step 6: Final answer
    x = 12,217.63

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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.