Home / 8,408.20-12,603.65-3,730.41

Finding the Fourth Proportional to 8,408.20, 12,603.65 and 3,730.41

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Solution

The fourth proportional to 8,408.20, 12,603.65 and 3,730.41 is: 5,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.20 : 12,603.65 = 3,730.41 : x
  2. Step 2: Convert to fraction form
    8,408.20/12,603.65 = 3,730.41/x
  3. Step 3: Cross multiply
    8,408.20x = 12,603.65 × 3,730.41
  4. Step 4: Simplify right side
    8,408.20x = 47,016,804.04
  5. Step 5: Solve for x
    x = 47,016,804.04/8,408.20
  6. Step 6: Final answer
    x = 5,591.78

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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.