Home / 13,738.96-18,959.79-7,451.29

Finding the Fourth Proportional to 13,738.96, 18,959.79 and 7,451.29

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Solution

The fourth proportional to 13,738.96, 18,959.79 and 7,451.29 is: 10,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.96 : 18,959.79 = 7,451.29 : x
  2. Step 2: Convert to fraction form
    13,738.96/18,959.79 = 7,451.29/x
  3. Step 3: Cross multiply
    13,738.96x = 18,959.79 × 7,451.29
  4. Step 4: Simplify right side
    13,738.96x = 141,274,893.63
  5. Step 5: Solve for x
    x = 141,274,893.63/13,738.96
  6. Step 6: Final answer
    x = 10,282.79

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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.