Home / 9,115.07-13,672.53-5,216.72

Finding the Fourth Proportional to 9,115.07, 13,672.53 and 5,216.72

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Solution

The fourth proportional to 9,115.07, 13,672.53 and 5,216.72 is: 7,825.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.07 : 13,672.53 = 5,216.72 : x
  2. Step 2: Convert to fraction form
    9,115.07/13,672.53 = 5,216.72/x
  3. Step 3: Cross multiply
    9,115.07x = 13,672.53 × 5,216.72
  4. Step 4: Simplify right side
    9,115.07x = 71,325,760.70
  5. Step 5: Solve for x
    x = 71,325,760.70/9,115.07
  6. Step 6: Final answer
    x = 7,825.04

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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.