Home / 13,238.16-18,272.76-8,522.44

Finding the Fourth Proportional to 13,238.16, 18,272.76 and 8,522.44

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Solution

The fourth proportional to 13,238.16, 18,272.76 and 8,522.44 is: 11,763.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.16 : 18,272.76 = 8,522.44 : x
  2. Step 2: Convert to fraction form
    13,238.16/18,272.76 = 8,522.44/x
  3. Step 3: Cross multiply
    13,238.16x = 18,272.76 × 8,522.44
  4. Step 4: Simplify right side
    13,238.16x = 155,728,500.73
  5. Step 5: Solve for x
    x = 155,728,500.73/13,238.16
  6. Step 6: Final answer
    x = 11,763.61

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.