Home / 10,391.97-15,579.27-4,842.46

Finding the Fourth Proportional to 10,391.97, 15,579.27 and 4,842.46

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Solution

The fourth proportional to 10,391.97, 15,579.27 and 4,842.46 is: 7,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.97 : 15,579.27 = 4,842.46 : x
  2. Step 2: Convert to fraction form
    10,391.97/15,579.27 = 4,842.46/x
  3. Step 3: Cross multiply
    10,391.97x = 15,579.27 × 4,842.46
  4. Step 4: Simplify right side
    10,391.97x = 75,441,991.80
  5. Step 5: Solve for x
    x = 75,441,991.80/10,391.97
  6. Step 6: Final answer
    x = 7,259.64

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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.