Home / 13,906.09-20,849.89-9,751.12

Finding the Fourth Proportional to 13,906.09, 20,849.89 and 9,751.12

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Solution

The fourth proportional to 13,906.09, 20,849.89 and 9,751.12 is: 14,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.09 : 20,849.89 = 9,751.12 : x
  2. Step 2: Convert to fraction form
    13,906.09/20,849.89 = 9,751.12/x
  3. Step 3: Cross multiply
    13,906.09x = 20,849.89 × 9,751.12
  4. Step 4: Simplify right side
    13,906.09x = 203,309,779.38
  5. Step 5: Solve for x
    x = 203,309,779.38/13,906.09
  6. Step 6: Final answer
    x = 14,620.20

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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.