Home / 12,667.86-18,998.52-5,997.78

Finding the Fourth Proportional to 12,667.86, 18,998.52 and 5,997.78

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Solution

The fourth proportional to 12,667.86, 18,998.52 and 5,997.78 is: 8,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.86 : 18,998.52 = 5,997.78 : x
  2. Step 2: Convert to fraction form
    12,667.86/18,998.52 = 5,997.78/x
  3. Step 3: Cross multiply
    12,667.86x = 18,998.52 × 5,997.78
  4. Step 4: Simplify right side
    12,667.86x = 113,948,943.29
  5. Step 5: Solve for x
    x = 113,948,943.29/12,667.86
  6. Step 6: Final answer
    x = 8,995.12

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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.