Home / 7,113.11-9,816.08-3,969.29

Finding the Fourth Proportional to 7,113.11, 9,816.08 and 3,969.29

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Solution

The fourth proportional to 7,113.11, 9,816.08 and 3,969.29 is: 5,477.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.11 : 9,816.08 = 3,969.29 : x
  2. Step 2: Convert to fraction form
    7,113.11/9,816.08 = 3,969.29/x
  3. Step 3: Cross multiply
    7,113.11x = 9,816.08 × 3,969.29
  4. Step 4: Simplify right side
    7,113.11x = 38,962,799.26
  5. Step 5: Solve for x
    x = 38,962,799.26/7,113.11
  6. Step 6: Final answer
    x = 5,477.61

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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.