Home / 12,556.55-18,842.13-5,631.05

Finding the Fourth Proportional to 12,556.55, 18,842.13 and 5,631.05

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Solution

The fourth proportional to 12,556.55, 18,842.13 and 5,631.05 is: 8,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.55 : 18,842.13 = 5,631.05 : x
  2. Step 2: Convert to fraction form
    12,556.55/18,842.13 = 5,631.05/x
  3. Step 3: Cross multiply
    12,556.55x = 18,842.13 × 5,631.05
  4. Step 4: Simplify right side
    12,556.55x = 106,101,023.24
  5. Step 5: Solve for x
    x = 106,101,023.24/12,556.55
  6. Step 6: Final answer
    x = 8,449.85

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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.