Home / 12,561.93-18,844.38-5,538.96

Finding the Fourth Proportional to 12,561.93, 18,844.38 and 5,538.96

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Solution

The fourth proportional to 12,561.93, 18,844.38 and 5,538.96 is: 8,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.93 : 18,844.38 = 5,538.96 : x
  2. Step 2: Convert to fraction form
    12,561.93/18,844.38 = 5,538.96/x
  3. Step 3: Cross multiply
    12,561.93x = 18,844.38 × 5,538.96
  4. Step 4: Simplify right side
    12,561.93x = 104,378,267.04
  5. Step 5: Solve for x
    x = 104,378,267.04/12,561.93
  6. Step 6: Final answer
    x = 8,309.09

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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.