Home / 9,195.53-12,689.75-5,216.68

Finding the Fourth Proportional to 9,195.53, 12,689.75 and 5,216.68

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Solution

The fourth proportional to 9,195.53, 12,689.75 and 5,216.68 is: 7,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.53 : 12,689.75 = 5,216.68 : x
  2. Step 2: Convert to fraction form
    9,195.53/12,689.75 = 5,216.68/x
  3. Step 3: Cross multiply
    9,195.53x = 12,689.75 × 5,216.68
  4. Step 4: Simplify right side
    9,195.53x = 66,198,346.35
  5. Step 5: Solve for x
    x = 66,198,346.35/9,195.53
  6. Step 6: Final answer
    x = 7,198.97

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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.