Home / 8,917.83-12,293.49-6,789.65

Finding the Fourth Proportional to 8,917.83, 12,293.49 and 6,789.65

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Solution

The fourth proportional to 8,917.83, 12,293.49 and 6,789.65 is: 9,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.83 : 12,293.49 = 6,789.65 : x
  2. Step 2: Convert to fraction form
    8,917.83/12,293.49 = 6,789.65/x
  3. Step 3: Cross multiply
    8,917.83x = 12,293.49 × 6,789.65
  4. Step 4: Simplify right side
    8,917.83x = 83,468,432.91
  5. Step 5: Solve for x
    x = 83,468,432.91/8,917.83
  6. Step 6: Final answer
    x = 9,359.72

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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.