Home / 9,195.62-12,690.86-5,419.94

Finding the Fourth Proportional to 9,195.62, 12,690.86 and 5,419.94

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Solution

The fourth proportional to 9,195.62, 12,690.86 and 5,419.94 is: 7,480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.62 : 12,690.86 = 5,419.94 : x
  2. Step 2: Convert to fraction form
    9,195.62/12,690.86 = 5,419.94/x
  3. Step 3: Cross multiply
    9,195.62x = 12,690.86 × 5,419.94
  4. Step 4: Simplify right side
    9,195.62x = 68,783,609.19
  5. Step 5: Solve for x
    x = 68,783,609.19/9,195.62
  6. Step 6: Final answer
    x = 7,480.04

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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.