Home / 8,651.48-12,975.39-3,105.14

Finding the Fourth Proportional to 8,651.48, 12,975.39 and 3,105.14

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Solution

The fourth proportional to 8,651.48, 12,975.39 and 3,105.14 is: 4,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.48 : 12,975.39 = 3,105.14 : x
  2. Step 2: Convert to fraction form
    8,651.48/12,975.39 = 3,105.14/x
  3. Step 3: Cross multiply
    8,651.48x = 12,975.39 × 3,105.14
  4. Step 4: Simplify right side
    8,651.48x = 40,290,337.63
  5. Step 5: Solve for x
    x = 40,290,337.63/8,651.48
  6. Step 6: Final answer
    x = 4,657.05

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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.