Home / 7,847.78-11,769.15-3,465.14

Finding the Fourth Proportional to 7,847.78, 11,769.15 and 3,465.14

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Solution

The fourth proportional to 7,847.78, 11,769.15 and 3,465.14 is: 5,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.78 : 11,769.15 = 3,465.14 : x
  2. Step 2: Convert to fraction form
    7,847.78/11,769.15 = 3,465.14/x
  3. Step 3: Cross multiply
    7,847.78x = 11,769.15 × 3,465.14
  4. Step 4: Simplify right side
    7,847.78x = 40,781,752.43
  5. Step 5: Solve for x
    x = 40,781,752.43/7,847.78
  6. Step 6: Final answer
    x = 5,196.60

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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.