Home / 13,499.65-20,228.09-8,236.97

Finding the Fourth Proportional to 13,499.65, 20,228.09 and 8,236.97

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Solution

The fourth proportional to 13,499.65, 20,228.09 and 8,236.97 is: 12,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.65 : 20,228.09 = 8,236.97 : x
  2. Step 2: Convert to fraction form
    13,499.65/20,228.09 = 8,236.97/x
  3. Step 3: Cross multiply
    13,499.65x = 20,228.09 × 8,236.97
  4. Step 4: Simplify right side
    13,499.65x = 166,618,129.30
  5. Step 5: Solve for x
    x = 166,618,129.30/13,499.65
  6. Step 6: Final answer
    x = 12,342.41

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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.