Home / 13,135.82-19,704.70-3,775.46

Finding the Fourth Proportional to 13,135.82, 19,704.70 and 3,775.46

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Solution

The fourth proportional to 13,135.82, 19,704.70 and 3,775.46 is: 5,663.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.82 : 19,704.70 = 3,775.46 : x
  2. Step 2: Convert to fraction form
    13,135.82/19,704.70 = 3,775.46/x
  3. Step 3: Cross multiply
    13,135.82x = 19,704.70 × 3,775.46
  4. Step 4: Simplify right side
    13,135.82x = 74,394,306.66
  5. Step 5: Solve for x
    x = 74,394,306.66/13,135.82
  6. Step 6: Final answer
    x = 5,663.47

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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.