Home / 19,672.60-27,147.33-11,174.69

Finding the Fourth Proportional to 19,672.60, 27,147.33 and 11,174.69

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Solution

The fourth proportional to 19,672.60, 27,147.33 and 11,174.69 is: 15,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.60 : 27,147.33 = 11,174.69 : x
  2. Step 2: Convert to fraction form
    19,672.60/27,147.33 = 11,174.69/x
  3. Step 3: Cross multiply
    19,672.60x = 27,147.33 × 11,174.69
  4. Step 4: Simplify right side
    19,672.60x = 303,362,969.14
  5. Step 5: Solve for x
    x = 303,362,969.14/19,672.60
  6. Step 6: Final answer
    x = 15,420.59

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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.