Home / 10,817.82-16,228.51-3,321.20

Finding the Fourth Proportional to 10,817.82, 16,228.51 and 3,321.20

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Solution

The fourth proportional to 10,817.82, 16,228.51 and 3,321.20 is: 4,982.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.82 : 16,228.51 = 3,321.20 : x
  2. Step 2: Convert to fraction form
    10,817.82/16,228.51 = 3,321.20/x
  3. Step 3: Cross multiply
    10,817.82x = 16,228.51 × 3,321.20
  4. Step 4: Simplify right side
    10,817.82x = 53,898,159.68
  5. Step 5: Solve for x
    x = 53,898,159.68/10,817.82
  6. Step 6: Final answer
    x = 4,982.35

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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.