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Finding the Fourth Proportional to 8,449.45, 12,657.77 and 4,069.98

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Solution

The fourth proportional to 8,449.45, 12,657.77 and 4,069.98 is: 6,097.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.45 : 12,657.77 = 4,069.98 : x
  2. Step 2: Convert to fraction form
    8,449.45/12,657.77 = 4,069.98/x
  3. Step 3: Cross multiply
    8,449.45x = 12,657.77 × 4,069.98
  4. Step 4: Simplify right side
    8,449.45x = 51,516,850.39
  5. Step 5: Solve for x
    x = 51,516,850.39/8,449.45
  6. Step 6: Final answer
    x = 6,097.07

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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.