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Finding the Fourth Proportional to 8,100.38, 11,178.52 and 4,374.38

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Solution

The fourth proportional to 8,100.38, 11,178.52 and 4,374.38 is: 6,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.38 : 11,178.52 = 4,374.38 : x
  2. Step 2: Convert to fraction form
    8,100.38/11,178.52 = 4,374.38/x
  3. Step 3: Cross multiply
    8,100.38x = 11,178.52 × 4,374.38
  4. Step 4: Simplify right side
    8,100.38x = 48,899,027.49
  5. Step 5: Solve for x
    x = 48,899,027.49/8,100.38
  6. Step 6: Final answer
    x = 6,036.64

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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.