Home / 13,396.27-20,091.52-8,459.32

Finding the Fourth Proportional to 13,396.27, 20,091.52 and 8,459.32

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Solution

The fourth proportional to 13,396.27, 20,091.52 and 8,459.32 is: 12,687.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.27 : 20,091.52 = 8,459.32 : x
  2. Step 2: Convert to fraction form
    13,396.27/20,091.52 = 8,459.32/x
  3. Step 3: Cross multiply
    13,396.27x = 20,091.52 × 8,459.32
  4. Step 4: Simplify right side
    13,396.27x = 169,960,596.97
  5. Step 5: Solve for x
    x = 169,960,596.97/13,396.27
  6. Step 6: Final answer
    x = 12,687.16

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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.