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Finding the Fourth Proportional to 12,244.95, 18,388.95 and 12,069.65

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Solution

The fourth proportional to 12,244.95, 18,388.95 and 12,069.65 is: 18,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,244.95 : 18,388.95 = 12,069.65 : x
  2. Step 2: Convert to fraction form
    12,244.95/18,388.95 = 12,069.65/x
  3. Step 3: Cross multiply
    12,244.95x = 18,388.95 × 12,069.65
  4. Step 4: Simplify right side
    12,244.95x = 221,948,128.60
  5. Step 5: Solve for x
    x = 221,948,128.60/12,244.95
  6. Step 6: Final answer
    x = 18,125.69

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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.