Home / 13,222.26-18,244.17-8,505.90

Finding the Fourth Proportional to 13,222.26, 18,244.17 and 8,505.90

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Solution

The fourth proportional to 13,222.26, 18,244.17 and 8,505.90 is: 11,736.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.26 : 18,244.17 = 8,505.90 : x
  2. Step 2: Convert to fraction form
    13,222.26/18,244.17 = 8,505.90/x
  3. Step 3: Cross multiply
    13,222.26x = 18,244.17 × 8,505.90
  4. Step 4: Simplify right side
    13,222.26x = 155,183,085.60
  5. Step 5: Solve for x
    x = 155,183,085.60/13,222.26
  6. Step 6: Final answer
    x = 11,736.50

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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.