Home / 9,231.76-13,819.37-8,539.66

Finding the Fourth Proportional to 9,231.76, 13,819.37 and 8,539.66

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Solution

The fourth proportional to 9,231.76, 13,819.37 and 8,539.66 is: 12,783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.76 : 13,819.37 = 8,539.66 : x
  2. Step 2: Convert to fraction form
    9,231.76/13,819.37 = 8,539.66/x
  3. Step 3: Cross multiply
    9,231.76x = 13,819.37 × 8,539.66
  4. Step 4: Simplify right side
    9,231.76x = 118,012,609.42
  5. Step 5: Solve for x
    x = 118,012,609.42/9,231.76
  6. Step 6: Final answer
    x = 12,783.33

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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.