Home / 13,394.33-20,072.25-7,538.57

Finding the Fourth Proportional to 13,394.33, 20,072.25 and 7,538.57

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Solution

The fourth proportional to 13,394.33, 20,072.25 and 7,538.57 is: 11,297.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.33 : 20,072.25 = 7,538.57 : x
  2. Step 2: Convert to fraction form
    13,394.33/20,072.25 = 7,538.57/x
  3. Step 3: Cross multiply
    13,394.33x = 20,072.25 × 7,538.57
  4. Step 4: Simplify right side
    13,394.33x = 151,316,061.68
  5. Step 5: Solve for x
    x = 151,316,061.68/13,394.33
  6. Step 6: Final answer
    x = 11,297.02

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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.