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Finding the Fourth Proportional to 10,817.10, 16,237.80 and 8,362.80

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Solution

The fourth proportional to 10,817.10, 16,237.80 and 8,362.80 is: 12,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.10 : 16,237.80 = 8,362.80 : x
  2. Step 2: Convert to fraction form
    10,817.10/16,237.80 = 8,362.80/x
  3. Step 3: Cross multiply
    10,817.10x = 16,237.80 × 8,362.80
  4. Step 4: Simplify right side
    10,817.10x = 135,793,473.84
  5. Step 5: Solve for x
    x = 135,793,473.84/10,817.10
  6. Step 6: Final answer
    x = 12,553.59

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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.