Home / 7,906.20-10,908.67-4,920.43

Finding the Fourth Proportional to 7,906.20, 10,908.67 and 4,920.43

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Solution

The fourth proportional to 7,906.20, 10,908.67 and 4,920.43 is: 6,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.20 : 10,908.67 = 4,920.43 : x
  2. Step 2: Convert to fraction form
    7,906.20/10,908.67 = 4,920.43/x
  3. Step 3: Cross multiply
    7,906.20x = 10,908.67 × 4,920.43
  4. Step 4: Simplify right side
    7,906.20x = 53,675,347.13
  5. Step 5: Solve for x
    x = 53,675,347.13/7,906.20
  6. Step 6: Final answer
    x = 6,789.02

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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.