Home / 11,354.31-17,014.32-4,778.73

Finding the Fourth Proportional to 11,354.31, 17,014.32 and 4,778.73

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Solution

The fourth proportional to 11,354.31, 17,014.32 and 4,778.73 is: 7,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,354.31 : 17,014.32 = 4,778.73 : x
  2. Step 2: Convert to fraction form
    11,354.31/17,014.32 = 4,778.73/x
  3. Step 3: Cross multiply
    11,354.31x = 17,014.32 × 4,778.73
  4. Step 4: Simplify right side
    11,354.31x = 81,306,841.41
  5. Step 5: Solve for x
    x = 81,306,841.41/11,354.31
  6. Step 6: Final answer
    x = 7,160.88

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1.5x scale

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.