Home / 8,184.28-12,278.31-2,561.63

Finding the Fourth Proportional to 8,184.28, 12,278.31 and 2,561.63

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Solution

The fourth proportional to 8,184.28, 12,278.31 and 2,561.63 is: 3,843.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.28 : 12,278.31 = 2,561.63 : x
  2. Step 2: Convert to fraction form
    8,184.28/12,278.31 = 2,561.63/x
  3. Step 3: Cross multiply
    8,184.28x = 12,278.31 × 2,561.63
  4. Step 4: Simplify right side
    8,184.28x = 31,452,462.29
  5. Step 5: Solve for x
    x = 31,452,462.29/8,184.28
  6. Step 6: Final answer
    x = 3,843.03

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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.