Home / 15,160.98-20,930.82-10,133.73

Finding the Fourth Proportional to 15,160.98, 20,930.82 and 10,133.73

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Solution

The fourth proportional to 15,160.98, 20,930.82 and 10,133.73 is: 13,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.98 : 20,930.82 = 10,133.73 : x
  2. Step 2: Convert to fraction form
    15,160.98/20,930.82 = 10,133.73/x
  3. Step 3: Cross multiply
    15,160.98x = 20,930.82 × 10,133.73
  4. Step 4: Simplify right side
    15,160.98x = 212,107,278.56
  5. Step 5: Solve for x
    x = 212,107,278.56/15,160.98
  6. Step 6: Final answer
    x = 13,990.34

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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.