Home / 11,013.53-16,520.45-3,618.56

Finding the Fourth Proportional to 11,013.53, 16,520.45 and 3,618.56

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Solution

The fourth proportional to 11,013.53, 16,520.45 and 3,618.56 is: 5,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,013.53 : 16,520.45 = 3,618.56 : x
  2. Step 2: Convert to fraction form
    11,013.53/16,520.45 = 3,618.56/x
  3. Step 3: Cross multiply
    11,013.53x = 16,520.45 × 3,618.56
  4. Step 4: Simplify right side
    11,013.53x = 59,780,221.46
  5. Step 5: Solve for x
    x = 59,780,221.46/11,013.53
  6. Step 6: Final answer
    x = 5,427.89

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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.