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Finding the Fourth Proportional to 8,151, 11,249.28 and 4,614.18

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Solution

The fourth proportional to 8,151, 11,249.28 and 4,614.18 is: 6,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151 : 11,249.28 = 4,614.18 : x
  2. Step 2: Convert to fraction form
    8,151/11,249.28 = 4,614.18/x
  3. Step 3: Cross multiply
    8,151x = 11,249.28 × 4,614.18
  4. Step 4: Simplify right side
    8,151x = 51,906,202.79
  5. Step 5: Solve for x
    x = 51,906,202.79/8,151
  6. Step 6: Final answer
    x = 6,368.08

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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.