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Finding the Fourth Proportional to 19,907.16, 29,850.67 and 8,817.25

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Solution

The fourth proportional to 19,907.16, 29,850.67 and 8,817.25 is: 13,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.16 : 29,850.67 = 8,817.25 : x
  2. Step 2: Convert to fraction form
    19,907.16/29,850.67 = 8,817.25/x
  3. Step 3: Cross multiply
    19,907.16x = 29,850.67 × 8,817.25
  4. Step 4: Simplify right side
    19,907.16x = 263,200,775.97
  5. Step 5: Solve for x
    x = 263,200,775.97/19,907.16
  6. Step 6: Final answer
    x = 13,221.41

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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.