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Finding the Fourth Proportional to 7,998.87, 12,059.22 and 7,435.11

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Solution

The fourth proportional to 7,998.87, 12,059.22 and 7,435.11 is: 11,209.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.87 : 12,059.22 = 7,435.11 : x
  2. Step 2: Convert to fraction form
    7,998.87/12,059.22 = 7,435.11/x
  3. Step 3: Cross multiply
    7,998.87x = 12,059.22 × 7,435.11
  4. Step 4: Simplify right side
    7,998.87x = 89,661,627.21
  5. Step 5: Solve for x
    x = 89,661,627.21/7,998.87
  6. Step 6: Final answer
    x = 11,209.29

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.