Home / 13,371.84-20,042.82-11,815.56

Finding the Fourth Proportional to 13,371.84, 20,042.82 and 11,815.56

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Solution

The fourth proportional to 13,371.84, 20,042.82 and 11,815.56 is: 17,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.84 : 20,042.82 = 11,815.56 : x
  2. Step 2: Convert to fraction form
    13,371.84/20,042.82 = 11,815.56/x
  3. Step 3: Cross multiply
    13,371.84x = 20,042.82 × 11,815.56
  4. Step 4: Simplify right side
    13,371.84x = 236,817,142.28
  5. Step 5: Solve for x
    x = 236,817,142.28/13,371.84
  6. Step 6: Final answer
    x = 17,710.14

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1.5x scale

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.