Home / 19,540.52-26,966.16-11,157

Finding the Fourth Proportional to 19,540.52, 26,966.16 and 11,157

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Solution

The fourth proportional to 19,540.52, 26,966.16 and 11,157 is: 15,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.52 : 26,966.16 = 11,157 : x
  2. Step 2: Convert to fraction form
    19,540.52/26,966.16 = 11,157/x
  3. Step 3: Cross multiply
    19,540.52x = 26,966.16 × 11,157
  4. Step 4: Simplify right side
    19,540.52x = 300,861,447.12
  5. Step 5: Solve for x
    x = 300,861,447.12/19,540.52
  6. Step 6: Final answer
    x = 15,396.80

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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.