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Finding the Fourth Proportional to 12,667.79, 19,001.67 and 3,433.79

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Solution

The fourth proportional to 12,667.79, 19,001.67 and 3,433.79 is: 5,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.79 : 19,001.67 = 3,433.79 : x
  2. Step 2: Convert to fraction form
    12,667.79/19,001.67 = 3,433.79/x
  3. Step 3: Cross multiply
    12,667.79x = 19,001.67 × 3,433.79
  4. Step 4: Simplify right side
    12,667.79x = 65,247,649.42
  5. Step 5: Solve for x
    x = 65,247,649.42/12,667.79
  6. Step 6: Final answer
    x = 5,150.68

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Double scale
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Similar ratio
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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.