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Finding the Fourth Proportional to 8,150.78, 11,247.99 and 4,424.78

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Solution

The fourth proportional to 8,150.78, 11,247.99 and 4,424.78 is: 6,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,150.78 : 11,247.99 = 4,424.78 : x
  2. Step 2: Convert to fraction form
    8,150.78/11,247.99 = 4,424.78/x
  3. Step 3: Cross multiply
    8,150.78x = 11,247.99 × 4,424.78
  4. Step 4: Simplify right side
    8,150.78x = 49,769,881.19
  5. Step 5: Solve for x
    x = 49,769,881.19/8,150.78
  6. Step 6: Final answer
    x = 6,106.15

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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.