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Finding the Fourth Proportional to 11,254.15, 16,865.01 and 8,269.13

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Solution

The fourth proportional to 11,254.15, 16,865.01 and 8,269.13 is: 12,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,254.15 : 16,865.01 = 8,269.13 : x
  2. Step 2: Convert to fraction form
    11,254.15/16,865.01 = 8,269.13/x
  3. Step 3: Cross multiply
    11,254.15x = 16,865.01 × 8,269.13
  4. Step 4: Simplify right side
    11,254.15x = 139,459,002.30
  5. Step 5: Solve for x
    x = 139,459,002.30/11,254.15
  6. Step 6: Final answer
    x = 12,391.78

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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.