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Finding the Fourth Proportional to 8,344.78, 12,520.89 and 4,395.08

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Solution

The fourth proportional to 8,344.78, 12,520.89 and 4,395.08 is: 6,594.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.78 : 12,520.89 = 4,395.08 : x
  2. Step 2: Convert to fraction form
    8,344.78/12,520.89 = 4,395.08/x
  3. Step 3: Cross multiply
    8,344.78x = 12,520.89 × 4,395.08
  4. Step 4: Simplify right side
    8,344.78x = 55,030,344.52
  5. Step 5: Solve for x
    x = 55,030,344.52/8,344.78
  6. Step 6: Final answer
    x = 6,594.58

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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.