Home / 8,688.78-13,034.82-2,845.74

Finding the Fourth Proportional to 8,688.78, 13,034.82 and 2,845.74

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Solution

The fourth proportional to 8,688.78, 13,034.82 and 2,845.74 is: 4,269.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.78 : 13,034.82 = 2,845.74 : x
  2. Step 2: Convert to fraction form
    8,688.78/13,034.82 = 2,845.74/x
  3. Step 3: Cross multiply
    8,688.78x = 13,034.82 × 2,845.74
  4. Step 4: Simplify right side
    8,688.78x = 37,093,708.67
  5. Step 5: Solve for x
    x = 37,093,708.67/8,688.78
  6. Step 6: Final answer
    x = 4,269.15

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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.