Home / 11,347.59-17,009.68-8,219.73

Finding the Fourth Proportional to 11,347.59, 17,009.68 and 8,219.73

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Solution

The fourth proportional to 11,347.59, 17,009.68 and 8,219.73 is: 12,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.59 : 17,009.68 = 8,219.73 : x
  2. Step 2: Convert to fraction form
    11,347.59/17,009.68 = 8,219.73/x
  3. Step 3: Cross multiply
    11,347.59x = 17,009.68 × 8,219.73
  4. Step 4: Simplify right side
    11,347.59x = 139,814,976.99
  5. Step 5: Solve for x
    x = 139,814,976.99/11,347.59
  6. Step 6: Final answer
    x = 12,321.12

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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.