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Finding the Fourth Proportional to 6,679.80, 10,019.70 and 5,016.60

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Solution

The fourth proportional to 6,679.80, 10,019.70 and 5,016.60 is: 7,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.80 : 10,019.70 = 5,016.60 : x
  2. Step 2: Convert to fraction form
    6,679.80/10,019.70 = 5,016.60/x
  3. Step 3: Cross multiply
    6,679.80x = 10,019.70 × 5,016.60
  4. Step 4: Simplify right side
    6,679.80x = 50,264,827.02
  5. Step 5: Solve for x
    x = 50,264,827.02/6,679.80
  6. Step 6: Final answer
    x = 7,524.90

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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.