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Finding the Fourth Proportional to 8,912.63, 13,368.91 and 2,249.15

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Solution

The fourth proportional to 8,912.63, 13,368.91 and 2,249.15 is: 3,373.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.63 : 13,368.91 = 2,249.15 : x
  2. Step 2: Convert to fraction form
    8,912.63/13,368.91 = 2,249.15/x
  3. Step 3: Cross multiply
    8,912.63x = 13,368.91 × 2,249.15
  4. Step 4: Simplify right side
    8,912.63x = 30,068,642.23
  5. Step 5: Solve for x
    x = 30,068,642.23/8,912.63
  6. Step 6: Final answer
    x = 3,373.71

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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.