Home / 12,605.24-18,896.18-5,581.51

Finding the Fourth Proportional to 12,605.24, 18,896.18 and 5,581.51

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Solution

The fourth proportional to 12,605.24, 18,896.18 and 5,581.51 is: 8,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.24 : 18,896.18 = 5,581.51 : x
  2. Step 2: Convert to fraction form
    12,605.24/18,896.18 = 5,581.51/x
  3. Step 3: Cross multiply
    12,605.24x = 18,896.18 × 5,581.51
  4. Step 4: Simplify right side
    12,605.24x = 105,469,217.63
  5. Step 5: Solve for x
    x = 105,469,217.63/12,605.24
  6. Step 6: Final answer
    x = 8,367.09

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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.