Home / 16,217.78-22,361.37-11,438.51

Finding the Fourth Proportional to 16,217.78, 22,361.37 and 11,438.51

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Solution

The fourth proportional to 16,217.78, 22,361.37 and 11,438.51 is: 15,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,217.78 : 22,361.37 = 11,438.51 : x
  2. Step 2: Convert to fraction form
    16,217.78/22,361.37 = 11,438.51/x
  3. Step 3: Cross multiply
    16,217.78x = 22,361.37 × 11,438.51
  4. Step 4: Simplify right side
    16,217.78x = 255,780,753.07
  5. Step 5: Solve for x
    x = 255,780,753.07/16,217.78
  6. Step 6: Final answer
    x = 15,771.62

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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.