Home / 8,919.83-12,296.25-6,791.65

Finding the Fourth Proportional to 8,919.83, 12,296.25 and 6,791.65

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Solution

The fourth proportional to 8,919.83, 12,296.25 and 6,791.65 is: 9,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.83 : 12,296.25 = 6,791.65 : x
  2. Step 2: Convert to fraction form
    8,919.83/12,296.25 = 6,791.65/x
  3. Step 3: Cross multiply
    8,919.83x = 12,296.25 × 6,791.65
  4. Step 4: Simplify right side
    8,919.83x = 83,511,826.31
  5. Step 5: Solve for x
    x = 83,511,826.31/8,919.83
  6. Step 6: Final answer
    x = 9,362.49

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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.