Home / 11,780.50-17,667.22-3,881.56

Finding the Fourth Proportional to 11,780.50, 17,667.22 and 3,881.56

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Solution

The fourth proportional to 11,780.50, 17,667.22 and 3,881.56 is: 5,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.50 : 17,667.22 = 3,881.56 : x
  2. Step 2: Convert to fraction form
    11,780.50/17,667.22 = 3,881.56/x
  3. Step 3: Cross multiply
    11,780.50x = 17,667.22 × 3,881.56
  4. Step 4: Simplify right side
    11,780.50x = 68,576,374.46
  5. Step 5: Solve for x
    x = 68,576,374.46/11,780.50
  6. Step 6: Final answer
    x = 5,821.18

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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.