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Finding the Fourth Proportional to 8,308.91, 11,465.42 and 4,951.87

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Solution

The fourth proportional to 8,308.91, 11,465.42 and 4,951.87 is: 6,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.91 : 11,465.42 = 4,951.87 : x
  2. Step 2: Convert to fraction form
    8,308.91/11,465.42 = 4,951.87/x
  3. Step 3: Cross multiply
    8,308.91x = 11,465.42 × 4,951.87
  4. Step 4: Simplify right side
    8,308.91x = 56,775,215.91
  5. Step 5: Solve for x
    x = 56,775,215.91/8,308.91
  6. Step 6: Final answer
    x = 6,833.05

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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.