Home / 10,204.73-15,315.29-5,275.80

Finding the Fourth Proportional to 10,204.73, 15,315.29 and 5,275.80

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Solution

The fourth proportional to 10,204.73, 15,315.29 and 5,275.80 is: 7,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204.73 : 15,315.29 = 5,275.80 : x
  2. Step 2: Convert to fraction form
    10,204.73/15,315.29 = 5,275.80/x
  3. Step 3: Cross multiply
    10,204.73x = 15,315.29 × 5,275.80
  4. Step 4: Simplify right side
    10,204.73x = 80,800,380.60
  5. Step 5: Solve for x
    x = 80,800,380.60/10,204.73
  6. Step 6: Final answer
    x = 7,917.94

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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.