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Finding the Fourth Proportional to 8,418.68, 12,625.46 and 3,735.77

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Solution

The fourth proportional to 8,418.68, 12,625.46 and 3,735.77 is: 5,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.68 : 12,625.46 = 3,735.77 : x
  2. Step 2: Convert to fraction form
    8,418.68/12,625.46 = 3,735.77/x
  3. Step 3: Cross multiply
    8,418.68x = 12,625.46 × 3,735.77
  4. Step 4: Simplify right side
    8,418.68x = 47,165,746.91
  5. Step 5: Solve for x
    x = 47,165,746.91/8,418.68
  6. Step 6: Final answer
    x = 5,602.51

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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.