Home / 19,278.72-28,922.70-6,131.10

Finding the Fourth Proportional to 19,278.72, 28,922.70 and 6,131.10

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Solution

The fourth proportional to 19,278.72, 28,922.70 and 6,131.10 is: 9,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.72 : 28,922.70 = 6,131.10 : x
  2. Step 2: Convert to fraction form
    19,278.72/28,922.70 = 6,131.10/x
  3. Step 3: Cross multiply
    19,278.72x = 28,922.70 × 6,131.10
  4. Step 4: Simplify right side
    19,278.72x = 177,327,965.97
  5. Step 5: Solve for x
    x = 177,327,965.97/19,278.72
  6. Step 6: Final answer
    x = 9,198.12

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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.