Home / 13,167.48-19,756.44-7,912.38

Finding the Fourth Proportional to 13,167.48, 19,756.44 and 7,912.38

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Solution

The fourth proportional to 13,167.48, 19,756.44 and 7,912.38 is: 11,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.48 : 19,756.44 = 7,912.38 : x
  2. Step 2: Convert to fraction form
    13,167.48/19,756.44 = 7,912.38/x
  3. Step 3: Cross multiply
    13,167.48x = 19,756.44 × 7,912.38
  4. Step 4: Simplify right side
    13,167.48x = 156,320,460.73
  5. Step 5: Solve for x
    x = 156,320,460.73/13,167.48
  6. Step 6: Final answer
    x = 11,871.71

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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.