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Finding the Fourth Proportional to 11,247.53, 16,864.35 and 7,741.79

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Solution

The fourth proportional to 11,247.53, 16,864.35 and 7,741.79 is: 11,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.53 : 16,864.35 = 7,741.79 : x
  2. Step 2: Convert to fraction form
    11,247.53/16,864.35 = 7,741.79/x
  3. Step 3: Cross multiply
    11,247.53x = 16,864.35 × 7,741.79
  4. Step 4: Simplify right side
    11,247.53x = 130,560,171.86
  5. Step 5: Solve for x
    x = 130,560,171.86/11,247.53
  6. Step 6: Final answer
    x = 11,607.90

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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.