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Finding the Fourth Proportional to 7,846.80, 11,745.90 and 4,550.10

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Solution

The fourth proportional to 7,846.80, 11,745.90 and 4,550.10 is: 6,811.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,846.80 : 11,745.90 = 4,550.10 : x
  2. Step 2: Convert to fraction form
    7,846.80/11,745.90 = 4,550.10/x
  3. Step 3: Cross multiply
    7,846.80x = 11,745.90 × 4,550.10
  4. Step 4: Simplify right side
    7,846.80x = 53,445,019.59
  5. Step 5: Solve for x
    x = 53,445,019.59/7,846.80
  6. Step 6: Final answer
    x = 6,811.06

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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.