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Finding the Fourth Proportional to 9,115.01, 13,672.52 and 5,216.71

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Solution

The fourth proportional to 9,115.01, 13,672.52 and 5,216.71 is: 7,825.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.01 : 13,672.52 = 5,216.71 : x
  2. Step 2: Convert to fraction form
    9,115.01/13,672.52 = 5,216.71/x
  3. Step 3: Cross multiply
    9,115.01x = 13,672.52 × 5,216.71
  4. Step 4: Simplify right side
    9,115.01x = 71,325,571.81
  5. Step 5: Solve for x
    x = 71,325,571.81/9,115.01
  6. Step 6: Final answer
    x = 7,825.07

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Similar ratio
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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.