Home / 12,556.56-18,842.13-5,631.06

Finding the Fourth Proportional to 12,556.56, 18,842.13 and 5,631.06

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Solution

The fourth proportional to 12,556.56, 18,842.13 and 5,631.06 is: 8,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.56 : 18,842.13 = 5,631.06 : x
  2. Step 2: Convert to fraction form
    12,556.56/18,842.13 = 5,631.06/x
  3. Step 3: Cross multiply
    12,556.56x = 18,842.13 × 5,631.06
  4. Step 4: Simplify right side
    12,556.56x = 106,101,164.56
  5. Step 5: Solve for x
    x = 106,101,164.56/12,556.56
  6. Step 6: Final answer
    x = 8,449.86

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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.