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Finding the Fourth Proportional to 11,379.17, 15,697.04 and 9,256.97

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Solution

The fourth proportional to 11,379.17, 15,697.04 and 9,256.97 is: 12,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.17 : 15,697.04 = 9,256.97 : x
  2. Step 2: Convert to fraction form
    11,379.17/15,697.04 = 9,256.97/x
  3. Step 3: Cross multiply
    11,379.17x = 15,697.04 × 9,256.97
  4. Step 4: Simplify right side
    11,379.17x = 145,306,903.60
  5. Step 5: Solve for x
    x = 145,306,903.60/11,379.17
  6. Step 6: Final answer
    x = 12,769.56

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1.5x scale

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.