Home / 12,556.80-18,835.16-11,726.42

Finding the Fourth Proportional to 12,556.80, 18,835.16 and 11,726.42

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Solution

The fourth proportional to 12,556.80, 18,835.16 and 11,726.42 is: 17,589.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.80 : 18,835.16 = 11,726.42 : x
  2. Step 2: Convert to fraction form
    12,556.80/18,835.16 = 11,726.42/x
  3. Step 3: Cross multiply
    12,556.80x = 18,835.16 × 11,726.42
  4. Step 4: Simplify right side
    12,556.80x = 220,868,996.93
  5. Step 5: Solve for x
    x = 220,868,996.93/12,556.80
  6. Step 6: Final answer
    x = 17,589.59

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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.