Home / 10,391.12-15,580.46-4,845.72

Finding the Fourth Proportional to 10,391.12, 15,580.46 and 4,845.72

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Solution

The fourth proportional to 10,391.12, 15,580.46 and 4,845.72 is: 7,265.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.12 : 15,580.46 = 4,845.72 : x
  2. Step 2: Convert to fraction form
    10,391.12/15,580.46 = 4,845.72/x
  3. Step 3: Cross multiply
    10,391.12x = 15,580.46 × 4,845.72
  4. Step 4: Simplify right side
    10,391.12x = 75,498,546.63
  5. Step 5: Solve for x
    x = 75,498,546.63/10,391.12
  6. Step 6: Final answer
    x = 7,265.68

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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.