Home / 13,556.07-20,331.80-3,693.04

Finding the Fourth Proportional to 13,556.07, 20,331.80 and 3,693.04

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Solution

The fourth proportional to 13,556.07, 20,331.80 and 3,693.04 is: 5,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.07 : 20,331.80 = 3,693.04 : x
  2. Step 2: Convert to fraction form
    13,556.07/20,331.80 = 3,693.04/x
  3. Step 3: Cross multiply
    13,556.07x = 20,331.80 × 3,693.04
  4. Step 4: Simplify right side
    13,556.07x = 75,086,081.38
  5. Step 5: Solve for x
    x = 75,086,081.38/13,556.07
  6. Step 6: Final answer
    x = 5,538.93

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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.