Home / 12,270.35-18,377.49-9,631.85

Finding the Fourth Proportional to 12,270.35, 18,377.49 and 9,631.85

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Solution

The fourth proportional to 12,270.35, 18,377.49 and 9,631.85 is: 14,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.35 : 18,377.49 = 9,631.85 : x
  2. Step 2: Convert to fraction form
    12,270.35/18,377.49 = 9,631.85/x
  3. Step 3: Cross multiply
    12,270.35x = 18,377.49 × 9,631.85
  4. Step 4: Simplify right side
    12,270.35x = 177,009,227.06
  5. Step 5: Solve for x
    x = 177,009,227.06/12,270.35
  6. Step 6: Final answer
    x = 14,425.77

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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.