Home / 12,262.80-18,395.40-4,469.78

Finding the Fourth Proportional to 12,262.80, 18,395.40 and 4,469.78

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Solution

The fourth proportional to 12,262.80, 18,395.40 and 4,469.78 is: 6,705.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.80 : 18,395.40 = 4,469.78 : x
  2. Step 2: Convert to fraction form
    12,262.80/18,395.40 = 4,469.78/x
  3. Step 3: Cross multiply
    12,262.80x = 18,395.40 × 4,469.78
  4. Step 4: Simplify right side
    12,262.80x = 82,223,391.01
  5. Step 5: Solve for x
    x = 82,223,391.01/12,262.80
  6. Step 6: Final answer
    x = 6,705.11

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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.