Home / 14,072.21-19,419.65-8,103.75

Finding the Fourth Proportional to 14,072.21, 19,419.65 and 8,103.75

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Solution

The fourth proportional to 14,072.21, 19,419.65 and 8,103.75 is: 11,183.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.21 : 19,419.65 = 8,103.75 : x
  2. Step 2: Convert to fraction form
    14,072.21/19,419.65 = 8,103.75/x
  3. Step 3: Cross multiply
    14,072.21x = 19,419.65 × 8,103.75
  4. Step 4: Simplify right side
    14,072.21x = 157,371,905.73
  5. Step 5: Solve for x
    x = 157,371,905.73/14,072.21
  6. Step 6: Final answer
    x = 11,183.17

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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.