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Finding the Fourth Proportional to 7,753.20, 11,620.08 and 6,019.80

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Solution

The fourth proportional to 7,753.20, 11,620.08 and 6,019.80 is: 9,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.20 : 11,620.08 = 6,019.80 : x
  2. Step 2: Convert to fraction form
    7,753.20/11,620.08 = 6,019.80/x
  3. Step 3: Cross multiply
    7,753.20x = 11,620.08 × 6,019.80
  4. Step 4: Simplify right side
    7,753.20x = 69,950,557.58
  5. Step 5: Solve for x
    x = 69,950,557.58/7,753.20
  6. Step 6: Final answer
    x = 9,022.15

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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.