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Finding the Fourth Proportional to 15,044, 20,760.72 and 8,760.56

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Solution

The fourth proportional to 15,044, 20,760.72 and 8,760.56 is: 12,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044 : 20,760.72 = 8,760.56 : x
  2. Step 2: Convert to fraction form
    15,044/20,760.72 = 8,760.56/x
  3. Step 3: Cross multiply
    15,044x = 20,760.72 × 8,760.56
  4. Step 4: Simplify right side
    15,044x = 181,875,533.20
  5. Step 5: Solve for x
    x = 181,875,533.20/15,044
  6. Step 6: Final answer
    x = 12,089.57

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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.