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Finding the Fourth Proportional to 9,121.97, 13,682.96 and 7,045.01

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Solution

The fourth proportional to 9,121.97, 13,682.96 and 7,045.01 is: 10,567.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.97 : 13,682.96 = 7,045.01 : x
  2. Step 2: Convert to fraction form
    9,121.97/13,682.96 = 7,045.01/x
  3. Step 3: Cross multiply
    9,121.97x = 13,682.96 × 7,045.01
  4. Step 4: Simplify right side
    9,121.97x = 96,396,525.64
  5. Step 5: Solve for x
    x = 96,396,525.64/9,121.97
  6. Step 6: Final answer
    x = 10,567.51

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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.