Home / 12,261.05-18,394.31-4,469.87

Finding the Fourth Proportional to 12,261.05, 18,394.31 and 4,469.87

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Solution

The fourth proportional to 12,261.05, 18,394.31 and 4,469.87 is: 6,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.05 : 18,394.31 = 4,469.87 : x
  2. Step 2: Convert to fraction form
    12,261.05/18,394.31 = 4,469.87/x
  3. Step 3: Cross multiply
    12,261.05x = 18,394.31 × 4,469.87
  4. Step 4: Simplify right side
    12,261.05x = 82,220,060.12
  5. Step 5: Solve for x
    x = 82,220,060.12/12,261.05
  6. Step 6: Final answer
    x = 6,705.80

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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.