Home / 13,912.09-19,198.76-7,538.69

Finding the Fourth Proportional to 13,912.09, 19,198.76 and 7,538.69

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Solution

The fourth proportional to 13,912.09, 19,198.76 and 7,538.69 is: 10,403.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.09 : 19,198.76 = 7,538.69 : x
  2. Step 2: Convert to fraction form
    13,912.09/19,198.76 = 7,538.69/x
  3. Step 3: Cross multiply
    13,912.09x = 19,198.76 × 7,538.69
  4. Step 4: Simplify right side
    13,912.09x = 144,733,394.61
  5. Step 5: Solve for x
    x = 144,733,394.61/13,912.09
  6. Step 6: Final answer
    x = 10,403.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.