Home / 14,120.28-21,187.71-5,361.48

Finding the Fourth Proportional to 14,120.28, 21,187.71 and 5,361.48

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Solution

The fourth proportional to 14,120.28, 21,187.71 and 5,361.48 is: 8,044.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.28 : 21,187.71 = 5,361.48 : x
  2. Step 2: Convert to fraction form
    14,120.28/21,187.71 = 5,361.48/x
  3. Step 3: Cross multiply
    14,120.28x = 21,187.71 × 5,361.48
  4. Step 4: Simplify right side
    14,120.28x = 113,597,483.41
  5. Step 5: Solve for x
    x = 113,597,483.41/14,120.28
  6. Step 6: Final answer
    x = 8,044.99

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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.