Home / 8,656.80-11,942.67-5,298.54

Finding the Fourth Proportional to 8,656.80, 11,942.67 and 5,298.54

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Solution

The fourth proportional to 8,656.80, 11,942.67 and 5,298.54 is: 7,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.80 : 11,942.67 = 5,298.54 : x
  2. Step 2: Convert to fraction form
    8,656.80/11,942.67 = 5,298.54/x
  3. Step 3: Cross multiply
    8,656.80x = 11,942.67 × 5,298.54
  4. Step 4: Simplify right side
    8,656.80x = 63,278,714.70
  5. Step 5: Solve for x
    x = 63,278,714.70/8,656.80
  6. Step 6: Final answer
    x = 7,309.71

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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.