Home / 7,179.19-9,910.32-6,730.81

Finding the Fourth Proportional to 7,179.19, 9,910.32 and 6,730.81

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Solution

The fourth proportional to 7,179.19, 9,910.32 and 6,730.81 is: 9,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.19 : 9,910.32 = 6,730.81 : x
  2. Step 2: Convert to fraction form
    7,179.19/9,910.32 = 6,730.81/x
  3. Step 3: Cross multiply
    7,179.19x = 9,910.32 × 6,730.81
  4. Step 4: Simplify right side
    7,179.19x = 66,704,480.96
  5. Step 5: Solve for x
    x = 66,704,480.96/7,179.19
  6. Step 6: Final answer
    x = 9,291.37

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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.