Home / 9,435.30-13,020.39-5,243.28

Finding the Fourth Proportional to 9,435.30, 13,020.39 and 5,243.28

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Solution

The fourth proportional to 9,435.30, 13,020.39 and 5,243.28 is: 7,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,435.30 : 13,020.39 = 5,243.28 : x
  2. Step 2: Convert to fraction form
    9,435.30/13,020.39 = 5,243.28/x
  3. Step 3: Cross multiply
    9,435.30x = 13,020.39 × 5,243.28
  4. Step 4: Simplify right side
    9,435.30x = 68,269,550.48
  5. Step 5: Solve for x
    x = 68,269,550.48/9,435.30
  6. Step 6: Final answer
    x = 7,235.55

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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.