Home / 9,192.20-12,685.50-5,213.12

Finding the Fourth Proportional to 9,192.20, 12,685.50 and 5,213.12

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Solution

The fourth proportional to 9,192.20, 12,685.50 and 5,213.12 is: 7,194.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.20 : 12,685.50 = 5,213.12 : x
  2. Step 2: Convert to fraction form
    9,192.20/12,685.50 = 5,213.12/x
  3. Step 3: Cross multiply
    9,192.20x = 12,685.50 × 5,213.12
  4. Step 4: Simplify right side
    9,192.20x = 66,131,033.76
  5. Step 5: Solve for x
    x = 66,131,033.76/9,192.20
  6. Step 6: Final answer
    x = 7,194.26

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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.