Home / 10,481.52-15,720.48-3,085.80

Finding the Fourth Proportional to 10,481.52, 15,720.48 and 3,085.80

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Solution

The fourth proportional to 10,481.52, 15,720.48 and 3,085.80 is: 4,628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.52 : 15,720.48 = 3,085.80 : x
  2. Step 2: Convert to fraction form
    10,481.52/15,720.48 = 3,085.80/x
  3. Step 3: Cross multiply
    10,481.52x = 15,720.48 × 3,085.80
  4. Step 4: Simplify right side
    10,481.52x = 48,510,257.18
  5. Step 5: Solve for x
    x = 48,510,257.18/10,481.52
  6. Step 6: Final answer
    x = 4,628.17

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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.