Home / 9,195.22-12,690.34-5,419.56

Finding the Fourth Proportional to 9,195.22, 12,690.34 and 5,419.56

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Solution

The fourth proportional to 9,195.22, 12,690.34 and 5,419.56 is: 7,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.22 : 12,690.34 = 5,419.56 : x
  2. Step 2: Convert to fraction form
    9,195.22/12,690.34 = 5,419.56/x
  3. Step 3: Cross multiply
    9,195.22x = 12,690.34 × 5,419.56
  4. Step 4: Simplify right side
    9,195.22x = 68,776,059.05
  5. Step 5: Solve for x
    x = 68,776,059.05/9,195.22
  6. Step 6: Final answer
    x = 7,479.54

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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.