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Finding the Fourth Proportional to 6,376.68, 8,801.55 and 4,138.43

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Solution

The fourth proportional to 6,376.68, 8,801.55 and 4,138.43 is: 5,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.68 : 8,801.55 = 4,138.43 : x
  2. Step 2: Convert to fraction form
    6,376.68/8,801.55 = 4,138.43/x
  3. Step 3: Cross multiply
    6,376.68x = 8,801.55 × 4,138.43
  4. Step 4: Simplify right side
    6,376.68x = 36,424,554.56
  5. Step 5: Solve for x
    x = 36,424,554.56/6,376.68
  6. Step 6: Final answer
    x = 5,712.15

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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.