Home / 6,613.85-9,921.01-3,325.15

Finding the Fourth Proportional to 6,613.85, 9,921.01 and 3,325.15

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Solution

The fourth proportional to 6,613.85, 9,921.01 and 3,325.15 is: 4,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.85 : 9,921.01 = 3,325.15 : x
  2. Step 2: Convert to fraction form
    6,613.85/9,921.01 = 3,325.15/x
  3. Step 3: Cross multiply
    6,613.85x = 9,921.01 × 3,325.15
  4. Step 4: Simplify right side
    6,613.85x = 32,988,847.37
  5. Step 5: Solve for x
    x = 32,988,847.37/6,613.85
  6. Step 6: Final answer
    x = 4,987.84

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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.