Home / 8,319.39-12,441.18-6,212.49

Finding the Fourth Proportional to 8,319.39, 12,441.18 and 6,212.49

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Solution

The fourth proportional to 8,319.39, 12,441.18 and 6,212.49 is: 9,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.39 : 12,441.18 = 6,212.49 : x
  2. Step 2: Convert to fraction form
    8,319.39/12,441.18 = 6,212.49/x
  3. Step 3: Cross multiply
    8,319.39x = 12,441.18 × 6,212.49
  4. Step 4: Simplify right side
    8,319.39x = 77,290,675.28
  5. Step 5: Solve for x
    x = 77,290,675.28/8,319.39
  6. Step 6: Final answer
    x = 9,290.43

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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.