Home / 19,672.62-27,147.36-11,174.72

Finding the Fourth Proportional to 19,672.62, 27,147.36 and 11,174.72

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Solution

The fourth proportional to 19,672.62, 27,147.36 and 11,174.72 is: 15,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.62 : 27,147.36 = 11,174.72 : x
  2. Step 2: Convert to fraction form
    19,672.62/27,147.36 = 11,174.72/x
  3. Step 3: Cross multiply
    19,672.62x = 27,147.36 × 11,174.72
  4. Step 4: Simplify right side
    19,672.62x = 303,364,038.94
  5. Step 5: Solve for x
    x = 303,364,038.94/19,672.62
  6. Step 6: Final answer
    x = 15,420.62

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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.