Home / 13,849.28-19,112.58-7,882

Finding the Fourth Proportional to 13,849.28, 19,112.58 and 7,882

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Solution

The fourth proportional to 13,849.28, 19,112.58 and 7,882 is: 10,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.28 : 19,112.58 = 7,882 : x
  2. Step 2: Convert to fraction form
    13,849.28/19,112.58 = 7,882/x
  3. Step 3: Cross multiply
    13,849.28x = 19,112.58 × 7,882
  4. Step 4: Simplify right side
    13,849.28x = 150,645,355.56
  5. Step 5: Solve for x
    x = 150,645,355.56/13,849.28
  6. Step 6: Final answer
    x = 10,877.49

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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.