Home / 7,910.11-11,866.96-4,210.39

Finding the Fourth Proportional to 7,910.11, 11,866.96 and 4,210.39

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Solution

The fourth proportional to 7,910.11, 11,866.96 and 4,210.39 is: 6,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.11 : 11,866.96 = 4,210.39 : x
  2. Step 2: Convert to fraction form
    7,910.11/11,866.96 = 4,210.39/x
  3. Step 3: Cross multiply
    7,910.11x = 11,866.96 × 4,210.39
  4. Step 4: Simplify right side
    7,910.11x = 49,964,505.31
  5. Step 5: Solve for x
    x = 49,964,505.31/7,910.11
  6. Step 6: Final answer
    x = 6,316.54

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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.