Home / 11,134.20-15,361.47-6,418.38

Finding the Fourth Proportional to 11,134.20, 15,361.47 and 6,418.38

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Solution

The fourth proportional to 11,134.20, 15,361.47 and 6,418.38 is: 8,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.20 : 15,361.47 = 6,418.38 : x
  2. Step 2: Convert to fraction form
    11,134.20/15,361.47 = 6,418.38/x
  3. Step 3: Cross multiply
    11,134.20x = 15,361.47 × 6,418.38
  4. Step 4: Simplify right side
    11,134.20x = 98,595,751.82
  5. Step 5: Solve for x
    x = 98,595,751.82/11,134.20
  6. Step 6: Final answer
    x = 8,855.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.