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Finding the Fourth Proportional to 13,506.66, 20,259.99 and 11,193.30

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Solution

The fourth proportional to 13,506.66, 20,259.99 and 11,193.30 is: 16,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.66 : 20,259.99 = 11,193.30 : x
  2. Step 2: Convert to fraction form
    13,506.66/20,259.99 = 11,193.30/x
  3. Step 3: Cross multiply
    13,506.66x = 20,259.99 × 11,193.30
  4. Step 4: Simplify right side
    13,506.66x = 226,775,988.80
  5. Step 5: Solve for x
    x = 226,775,988.80/13,506.66
  6. Step 6: Final answer
    x = 16,789.94

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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.