Home / 26,206.86-39,278.82-12,147.78

Finding the Fourth Proportional to 26,206.86, 39,278.82 and 12,147.78

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Solution

The fourth proportional to 26,206.86, 39,278.82 and 12,147.78 is: 18,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,206.86 : 39,278.82 = 12,147.78 : x
  2. Step 2: Convert to fraction form
    26,206.86/39,278.82 = 12,147.78/x
  3. Step 3: Cross multiply
    26,206.86x = 39,278.82 × 12,147.78
  4. Step 4: Simplify right side
    26,206.86x = 477,150,464.02
  5. Step 5: Solve for x
    x = 477,150,464.02/26,206.86
  6. Step 6: Final answer
    x = 18,207.08

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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.