Home / 15,626.96-21,542.78-11,142.94

Finding the Fourth Proportional to 15,626.96, 21,542.78 and 11,142.94

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Solution

The fourth proportional to 15,626.96, 21,542.78 and 11,142.94 is: 15,361.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,626.96 : 21,542.78 = 11,142.94 : x
  2. Step 2: Convert to fraction form
    15,626.96/21,542.78 = 11,142.94/x
  3. Step 3: Cross multiply
    15,626.96x = 21,542.78 × 11,142.94
  4. Step 4: Simplify right side
    15,626.96x = 240,049,904.97
  5. Step 5: Solve for x
    x = 240,049,904.97/15,626.96
  6. Step 6: Final answer
    x = 15,361.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.