Home / 8,487.43-12,704.49-5,356.60

Finding the Fourth Proportional to 8,487.43, 12,704.49 and 5,356.60

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Solution

The fourth proportional to 8,487.43, 12,704.49 and 5,356.60 is: 8,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.43 : 12,704.49 = 5,356.60 : x
  2. Step 2: Convert to fraction form
    8,487.43/12,704.49 = 5,356.60/x
  3. Step 3: Cross multiply
    8,487.43x = 12,704.49 × 5,356.60
  4. Step 4: Simplify right side
    8,487.43x = 68,052,844.35
  5. Step 5: Solve for x
    x = 68,052,844.35/8,487.43
  6. Step 6: Final answer
    x = 8,018.08

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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.