Home / 9,195.56-12,689.16-5,217.35

Finding the Fourth Proportional to 9,195.56, 12,689.16 and 5,217.35

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Solution

The fourth proportional to 9,195.56, 12,689.16 and 5,217.35 is: 7,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.56 : 12,689.16 = 5,217.35 : x
  2. Step 2: Convert to fraction form
    9,195.56/12,689.16 = 5,217.35/x
  3. Step 3: Cross multiply
    9,195.56x = 12,689.16 × 5,217.35
  4. Step 4: Simplify right side
    9,195.56x = 66,203,705.92
  5. Step 5: Solve for x
    x = 66,203,705.92/9,195.56
  6. Step 6: Final answer
    x = 7,199.53

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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.