Home / 12,209.82-18,293.84-6,667.07

Finding the Fourth Proportional to 12,209.82, 18,293.84 and 6,667.07

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Solution

The fourth proportional to 12,209.82, 18,293.84 and 6,667.07 is: 9,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.82 : 18,293.84 = 6,667.07 : x
  2. Step 2: Convert to fraction form
    12,209.82/18,293.84 = 6,667.07/x
  3. Step 3: Cross multiply
    12,209.82x = 18,293.84 × 6,667.07
  4. Step 4: Simplify right side
    12,209.82x = 121,966,212.05
  5. Step 5: Solve for x
    x = 121,966,212.05/12,209.82
  6. Step 6: Final answer
    x = 9,989.19

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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.