Home / 9,195.30-12,689.18-5,217.19

Finding the Fourth Proportional to 9,195.30, 12,689.18 and 5,217.19

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Solution

The fourth proportional to 9,195.30, 12,689.18 and 5,217.19 is: 7,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.30 : 12,689.18 = 5,217.19 : x
  2. Step 2: Convert to fraction form
    9,195.30/12,689.18 = 5,217.19/x
  3. Step 3: Cross multiply
    9,195.30x = 12,689.18 × 5,217.19
  4. Step 4: Simplify right side
    9,195.30x = 66,201,805.20
  5. Step 5: Solve for x
    x = 66,201,805.20/9,195.30
  6. Step 6: Final answer
    x = 7,199.53

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Double scale
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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.