Home / 7,326.92-10,111.18-3,969.74

Finding the Fourth Proportional to 7,326.92, 10,111.18 and 3,969.74

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Solution

The fourth proportional to 7,326.92, 10,111.18 and 3,969.74 is: 5,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.92 : 10,111.18 = 3,969.74 : x
  2. Step 2: Convert to fraction form
    7,326.92/10,111.18 = 3,969.74/x
  3. Step 3: Cross multiply
    7,326.92x = 10,111.18 × 3,969.74
  4. Step 4: Simplify right side
    7,326.92x = 40,138,755.69
  5. Step 5: Solve for x
    x = 40,138,755.69/7,326.92
  6. Step 6: Final answer
    x = 5,478.26

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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.