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Finding the Fourth Proportional to 15,114.80, 22,672.20 and 12,672.65

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Solution

The fourth proportional to 15,114.80, 22,672.20 and 12,672.65 is: 19,008.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.80 : 22,672.20 = 12,672.65 : x
  2. Step 2: Convert to fraction form
    15,114.80/22,672.20 = 12,672.65/x
  3. Step 3: Cross multiply
    15,114.80x = 22,672.20 × 12,672.65
  4. Step 4: Simplify right side
    15,114.80x = 287,316,855.33
  5. Step 5: Solve for x
    x = 287,316,855.33/15,114.80
  6. Step 6: Final answer
    x = 19,008.98

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1.5x scale

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.