Home / 15,633.57-21,559.19-13,243.33

Finding the Fourth Proportional to 15,633.57, 21,559.19 and 13,243.33

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Solution

The fourth proportional to 15,633.57, 21,559.19 and 13,243.33 is: 18,262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,633.57 : 21,559.19 = 13,243.33 : x
  2. Step 2: Convert to fraction form
    15,633.57/21,559.19 = 13,243.33/x
  3. Step 3: Cross multiply
    15,633.57x = 21,559.19 × 13,243.33
  4. Step 4: Simplify right side
    15,633.57x = 285,515,347.59
  5. Step 5: Solve for x
    x = 285,515,347.59/15,633.57
  6. Step 6: Final answer
    x = 18,262.97

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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.