Home / 12,667.79-19,001.22-3,902.48

Finding the Fourth Proportional to 12,667.79, 19,001.22 and 3,902.48

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Solution

The fourth proportional to 12,667.79, 19,001.22 and 3,902.48 is: 5,853.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.79 : 19,001.22 = 3,902.48 : x
  2. Step 2: Convert to fraction form
    12,667.79/19,001.22 = 3,902.48/x
  3. Step 3: Cross multiply
    12,667.79x = 19,001.22 × 3,902.48
  4. Step 4: Simplify right side
    12,667.79x = 74,151,786.02
  5. Step 5: Solve for x
    x = 74,151,786.02/12,667.79
  6. Step 6: Final answer
    x = 5,853.57

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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.