Home / 11,471.80-17,192.58-8,869.72

Finding the Fourth Proportional to 11,471.80, 17,192.58 and 8,869.72

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Solution

The fourth proportional to 11,471.80, 17,192.58 and 8,869.72 is: 13,292.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.80 : 17,192.58 = 8,869.72 : x
  2. Step 2: Convert to fraction form
    11,471.80/17,192.58 = 8,869.72/x
  3. Step 3: Cross multiply
    11,471.80x = 17,192.58 × 8,869.72
  4. Step 4: Simplify right side
    11,471.80x = 152,493,370.68
  5. Step 5: Solve for x
    x = 152,493,370.68/11,471.80
  6. Step 6: Final answer
    x = 13,292.89

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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.