Home / 13,028.20-19,447.92-11,451.72

Finding the Fourth Proportional to 13,028.20, 19,447.92 and 11,451.72

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Solution

The fourth proportional to 13,028.20, 19,447.92 and 11,451.72 is: 17,094.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.20 : 19,447.92 = 11,451.72 : x
  2. Step 2: Convert to fraction form
    13,028.20/19,447.92 = 11,451.72/x
  3. Step 3: Cross multiply
    13,028.20x = 19,447.92 × 11,451.72
  4. Step 4: Simplify right side
    13,028.20x = 222,712,134.42
  5. Step 5: Solve for x
    x = 222,712,134.42/13,028.20
  6. Step 6: Final answer
    x = 17,094.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.