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Finding the Fourth Proportional to 11,249.78, 15,502.77 and 8,100.02

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Solution

The fourth proportional to 11,249.78, 15,502.77 and 8,100.02 is: 11,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.78 : 15,502.77 = 8,100.02 : x
  2. Step 2: Convert to fraction form
    11,249.78/15,502.77 = 8,100.02/x
  3. Step 3: Cross multiply
    11,249.78x = 15,502.77 × 8,100.02
  4. Step 4: Simplify right side
    11,249.78x = 125,572,747.06
  5. Step 5: Solve for x
    x = 125,572,747.06/11,249.78
  6. Step 6: Final answer
    x = 11,162.24

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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.