Home / 11,781.67-17,672.73-9,430.76

Finding the Fourth Proportional to 11,781.67, 17,672.73 and 9,430.76

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Solution

The fourth proportional to 11,781.67, 17,672.73 and 9,430.76 is: 14,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.67 : 17,672.73 = 9,430.76 : x
  2. Step 2: Convert to fraction form
    11,781.67/17,672.73 = 9,430.76/x
  3. Step 3: Cross multiply
    11,781.67x = 17,672.73 × 9,430.76
  4. Step 4: Simplify right side
    11,781.67x = 166,667,337.04
  5. Step 5: Solve for x
    x = 166,667,337.04/11,781.67
  6. Step 6: Final answer
    x = 14,146.33

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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.