Home / 9,142.53-13,705.59-3,297.78

Finding the Fourth Proportional to 9,142.53, 13,705.59 and 3,297.78

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Solution

The fourth proportional to 9,142.53, 13,705.59 and 3,297.78 is: 4,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.53 : 13,705.59 = 3,297.78 : x
  2. Step 2: Convert to fraction form
    9,142.53/13,705.59 = 3,297.78/x
  3. Step 3: Cross multiply
    9,142.53x = 13,705.59 × 3,297.78
  4. Step 4: Simplify right side
    9,142.53x = 45,198,020.59
  5. Step 5: Solve for x
    x = 45,198,020.59/9,142.53
  6. Step 6: Final answer
    x = 4,943.71

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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.