Home / 11,781.72-17,667.02-3,459.56

Finding the Fourth Proportional to 11,781.72, 17,667.02 and 3,459.56

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Solution

The fourth proportional to 11,781.72, 17,667.02 and 3,459.56 is: 5,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.72 : 17,667.02 = 3,459.56 : x
  2. Step 2: Convert to fraction form
    11,781.72/17,667.02 = 3,459.56/x
  3. Step 3: Cross multiply
    11,781.72x = 17,667.02 × 3,459.56
  4. Step 4: Simplify right side
    11,781.72x = 61,120,115.71
  5. Step 5: Solve for x
    x = 61,120,115.71/11,781.72
  6. Step 6: Final answer
    x = 5,187.71

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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.