Home / 13,771.67-20,641.10-7,196.09

Finding the Fourth Proportional to 13,771.67, 20,641.10 and 7,196.09

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Solution

The fourth proportional to 13,771.67, 20,641.10 and 7,196.09 is: 10,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.67 : 20,641.10 = 7,196.09 : x
  2. Step 2: Convert to fraction form
    13,771.67/20,641.10 = 7,196.09/x
  3. Step 3: Cross multiply
    13,771.67x = 20,641.10 × 7,196.09
  4. Step 4: Simplify right side
    13,771.67x = 148,535,074.11
  5. Step 5: Solve for x
    x = 148,535,074.11/13,771.67
  6. Step 6: Final answer
    x = 10,785.56

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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.