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Finding the Fourth Proportional to 11,808.36, 17,712.54 and 11,295.87

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Solution

The fourth proportional to 11,808.36, 17,712.54 and 11,295.87 is: 16,943.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.36 : 17,712.54 = 11,295.87 : x
  2. Step 2: Convert to fraction form
    11,808.36/17,712.54 = 11,295.87/x
  3. Step 3: Cross multiply
    11,808.36x = 17,712.54 × 11,295.87
  4. Step 4: Simplify right side
    11,808.36x = 200,078,549.21
  5. Step 5: Solve for x
    x = 200,078,549.21/11,808.36
  6. Step 6: Final answer
    x = 16,943.81

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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.