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Finding the Fourth Proportional to 15,041.06, 20,760 and 8,757.08

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Solution

The fourth proportional to 15,041.06, 20,760 and 8,757.08 is: 12,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.06 : 20,760 = 8,757.08 : x
  2. Step 2: Convert to fraction form
    15,041.06/20,760 = 8,757.08/x
  3. Step 3: Cross multiply
    15,041.06x = 20,760 × 8,757.08
  4. Step 4: Simplify right side
    15,041.06x = 181,796,980.80
  5. Step 5: Solve for x
    x = 181,796,980.80/15,041.06
  6. Step 6: Final answer
    x = 12,086.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.