Home / 8,861.19-12,230.21-5,086.90

Finding the Fourth Proportional to 8,861.19, 12,230.21 and 5,086.90

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Solution

The fourth proportional to 8,861.19, 12,230.21 and 5,086.90 is: 7,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.19 : 12,230.21 = 5,086.90 : x
  2. Step 2: Convert to fraction form
    8,861.19/12,230.21 = 5,086.90/x
  3. Step 3: Cross multiply
    8,861.19x = 12,230.21 × 5,086.90
  4. Step 4: Simplify right side
    8,861.19x = 62,213,855.25
  5. Step 5: Solve for x
    x = 62,213,855.25/8,861.19
  6. Step 6: Final answer
    x = 7,020.94

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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.