Home / 13,522.04-18,650.12-11,636.78

Finding the Fourth Proportional to 13,522.04, 18,650.12 and 11,636.78

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Solution

The fourth proportional to 13,522.04, 18,650.12 and 11,636.78 is: 16,049.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.04 : 18,650.12 = 11,636.78 : x
  2. Step 2: Convert to fraction form
    13,522.04/18,650.12 = 11,636.78/x
  3. Step 3: Cross multiply
    13,522.04x = 18,650.12 × 11,636.78
  4. Step 4: Simplify right side
    13,522.04x = 217,027,343.41
  5. Step 5: Solve for x
    x = 217,027,343.41/13,522.04
  6. Step 6: Final answer
    x = 16,049.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.