Home / 14,842.12-20,481.78-8,127.76

Finding the Fourth Proportional to 14,842.12, 20,481.78 and 8,127.76

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Solution

The fourth proportional to 14,842.12, 20,481.78 and 8,127.76 is: 11,216.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,842.12 : 20,481.78 = 8,127.76 : x
  2. Step 2: Convert to fraction form
    14,842.12/20,481.78 = 8,127.76/x
  3. Step 3: Cross multiply
    14,842.12x = 20,481.78 × 8,127.76
  4. Step 4: Simplify right side
    14,842.12x = 166,470,992.21
  5. Step 5: Solve for x
    x = 166,470,992.21/14,842.12
  6. Step 6: Final answer
    x = 11,216.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.