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Finding the Fourth Proportional to 22,178.90, 33,268.95 and 6,385.11

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Solution

The fourth proportional to 22,178.90, 33,268.95 and 6,385.11 is: 9,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.90 : 33,268.95 = 6,385.11 : x
  2. Step 2: Convert to fraction form
    22,178.90/33,268.95 = 6,385.11/x
  3. Step 3: Cross multiply
    22,178.90x = 33,268.95 × 6,385.11
  4. Step 4: Simplify right side
    22,178.90x = 212,425,905.33
  5. Step 5: Solve for x
    x = 212,425,905.33/22,178.90
  6. Step 6: Final answer
    x = 9,577.84

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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.