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Finding the Fourth Proportional to 11,275.52, 16,917.15 and 4,257.54

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Solution

The fourth proportional to 11,275.52, 16,917.15 and 4,257.54 is: 6,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.52 : 16,917.15 = 4,257.54 : x
  2. Step 2: Convert to fraction form
    11,275.52/16,917.15 = 4,257.54/x
  3. Step 3: Cross multiply
    11,275.52x = 16,917.15 × 4,257.54
  4. Step 4: Simplify right side
    11,275.52x = 72,025,442.81
  5. Step 5: Solve for x
    x = 72,025,442.81/11,275.52
  6. Step 6: Final answer
    x = 6,387.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.