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Finding the Fourth Proportional to 15,173.06, 22,769.92 and 9,311.78

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Solution

The fourth proportional to 15,173.06, 22,769.92 and 9,311.78 is: 13,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.06 : 22,769.92 = 9,311.78 : x
  2. Step 2: Convert to fraction form
    15,173.06/22,769.92 = 9,311.78/x
  3. Step 3: Cross multiply
    15,173.06x = 22,769.92 × 9,311.78
  4. Step 4: Simplify right side
    15,173.06x = 212,028,485.66
  5. Step 5: Solve for x
    x = 212,028,485.66/15,173.06
  6. Step 6: Final answer
    x = 13,974.01

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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.