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Finding the Fourth Proportional to 6,442.71, 8,916.18 and 6,333.36

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Solution

The fourth proportional to 6,442.71, 8,916.18 and 6,333.36 is: 8,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,442.71 : 8,916.18 = 6,333.36 : x
  2. Step 2: Convert to fraction form
    6,442.71/8,916.18 = 6,333.36/x
  3. Step 3: Cross multiply
    6,442.71x = 8,916.18 × 6,333.36
  4. Step 4: Simplify right side
    6,442.71x = 56,469,377.76
  5. Step 5: Solve for x
    x = 56,469,377.76/6,442.71
  6. Step 6: Final answer
    x = 8,764.85

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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.