Home / 8,148.39-12,219.13-3,468.21

Finding the Fourth Proportional to 8,148.39, 12,219.13 and 3,468.21

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Solution

The fourth proportional to 8,148.39, 12,219.13 and 3,468.21 is: 5,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.39 : 12,219.13 = 3,468.21 : x
  2. Step 2: Convert to fraction form
    8,148.39/12,219.13 = 3,468.21/x
  3. Step 3: Cross multiply
    8,148.39x = 12,219.13 × 3,468.21
  4. Step 4: Simplify right side
    8,148.39x = 42,378,508.86
  5. Step 5: Solve for x
    x = 42,378,508.86/8,148.39
  6. Step 6: Final answer
    x = 5,200.84

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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.