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Finding the Fourth Proportional to 15,303.80, 22,934.14 and 12,169.90

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Solution

The fourth proportional to 15,303.80, 22,934.14 and 12,169.90 is: 18,237.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303.80 : 22,934.14 = 12,169.90 : x
  2. Step 2: Convert to fraction form
    15,303.80/22,934.14 = 12,169.90/x
  3. Step 3: Cross multiply
    15,303.80x = 22,934.14 × 12,169.90
  4. Step 4: Simplify right side
    15,303.80x = 279,106,190.39
  5. Step 5: Solve for x
    x = 279,106,190.39/15,303.80
  6. Step 6: Final answer
    x = 18,237.71

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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.