Home / 10,218.18-15,327.27-3,198.06

Finding the Fourth Proportional to 10,218.18, 15,327.27 and 3,198.06

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Solution

The fourth proportional to 10,218.18, 15,327.27 and 3,198.06 is: 4,797.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.18 : 15,327.27 = 3,198.06 : x
  2. Step 2: Convert to fraction form
    10,218.18/15,327.27 = 3,198.06/x
  3. Step 3: Cross multiply
    10,218.18x = 15,327.27 × 3,198.06
  4. Step 4: Simplify right side
    10,218.18x = 49,017,529.10
  5. Step 5: Solve for x
    x = 49,017,529.10/10,218.18
  6. Step 6: Final answer
    x = 4,797.09

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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.