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Finding the Fourth Proportional to 6,367.20, 8,787.47 and 6,163.08

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Solution

The fourth proportional to 6,367.20, 8,787.47 and 6,163.08 is: 8,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.20 : 8,787.47 = 6,163.08 : x
  2. Step 2: Convert to fraction form
    6,367.20/8,787.47 = 6,163.08/x
  3. Step 3: Cross multiply
    6,367.20x = 8,787.47 × 6,163.08
  4. Step 4: Simplify right side
    6,367.20x = 54,157,849.79
  5. Step 5: Solve for x
    x = 54,157,849.79/6,367.20
  6. Step 6: Final answer
    x = 8,505.76

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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.