Home / 9,115.53-13,673.30-5,217.20

Finding the Fourth Proportional to 9,115.53, 13,673.30 and 5,217.20

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Solution

The fourth proportional to 9,115.53, 13,673.30 and 5,217.20 is: 7,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.53 : 13,673.30 = 5,217.20 : x
  2. Step 2: Convert to fraction form
    9,115.53/13,673.30 = 5,217.20/x
  3. Step 3: Cross multiply
    9,115.53x = 13,673.30 × 5,217.20
  4. Step 4: Simplify right side
    9,115.53x = 71,336,340.76
  5. Step 5: Solve for x
    x = 71,336,340.76/9,115.53
  6. Step 6: Final answer
    x = 7,825.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.