Home / 10,454.05-15,680.79-2,556.61

Finding the Fourth Proportional to 10,454.05, 15,680.79 and 2,556.61

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Solution

The fourth proportional to 10,454.05, 15,680.79 and 2,556.61 is: 3,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,454.05 : 15,680.79 = 2,556.61 : x
  2. Step 2: Convert to fraction form
    10,454.05/15,680.79 = 2,556.61/x
  3. Step 3: Cross multiply
    10,454.05x = 15,680.79 × 2,556.61
  4. Step 4: Simplify right side
    10,454.05x = 40,089,664.52
  5. Step 5: Solve for x
    x = 40,089,664.52/10,454.05
  6. Step 6: Final answer
    x = 3,834.85

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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.