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Finding the Fourth Proportional to 9,122.99, 13,684.48 and 2,197.49

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Solution

The fourth proportional to 9,122.99, 13,684.48 and 2,197.49 is: 3,296.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.99 : 13,684.48 = 2,197.49 : x
  2. Step 2: Convert to fraction form
    9,122.99/13,684.48 = 2,197.49/x
  3. Step 3: Cross multiply
    9,122.99x = 13,684.48 × 2,197.49
  4. Step 4: Simplify right side
    9,122.99x = 30,071,434.04
  5. Step 5: Solve for x
    x = 30,071,434.04/9,122.99
  6. Step 6: Final answer
    x = 3,296.23

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Double scale
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Similar ratio
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1.5x scale

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.