Home / 8,920.06-12,313.74-6,369.73

Finding the Fourth Proportional to 8,920.06, 12,313.74 and 6,369.73

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Solution

The fourth proportional to 8,920.06, 12,313.74 and 6,369.73 is: 8,793.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.06 : 12,313.74 = 6,369.73 : x
  2. Step 2: Convert to fraction form
    8,920.06/12,313.74 = 6,369.73/x
  3. Step 3: Cross multiply
    8,920.06x = 12,313.74 × 6,369.73
  4. Step 4: Simplify right side
    8,920.06x = 78,435,199.09
  5. Step 5: Solve for x
    x = 78,435,199.09/8,920.06
  6. Step 6: Final answer
    x = 8,793.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.