Home / 7,609.62-11,398.56-6,120.81

Finding the Fourth Proportional to 7,609.62, 11,398.56 and 6,120.81

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Solution

The fourth proportional to 7,609.62, 11,398.56 and 6,120.81 is: 9,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,609.62 : 11,398.56 = 6,120.81 : x
  2. Step 2: Convert to fraction form
    7,609.62/11,398.56 = 6,120.81/x
  3. Step 3: Cross multiply
    7,609.62x = 11,398.56 × 6,120.81
  4. Step 4: Simplify right side
    7,609.62x = 69,768,363.04
  5. Step 5: Solve for x
    x = 69,768,363.04/7,609.62
  6. Step 6: Final answer
    x = 9,168.44

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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.