Home / 13,238.41-18,273.11-8,522.70

Finding the Fourth Proportional to 13,238.41, 18,273.11 and 8,522.70

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Solution

The fourth proportional to 13,238.41, 18,273.11 and 8,522.70 is: 11,763.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.41 : 18,273.11 = 8,522.70 : x
  2. Step 2: Convert to fraction form
    13,238.41/18,273.11 = 8,522.70/x
  3. Step 3: Cross multiply
    13,238.41x = 18,273.11 × 8,522.70
  4. Step 4: Simplify right side
    13,238.41x = 155,736,234.60
  5. Step 5: Solve for x
    x = 155,736,234.60/13,238.41
  6. Step 6: Final answer
    x = 11,763.97

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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.