Home / 13,743.97-18,950.05-11,615.75

Finding the Fourth Proportional to 13,743.97, 18,950.05 and 11,615.75

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Solution

The fourth proportional to 13,743.97, 18,950.05 and 11,615.75 is: 16,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.97 : 18,950.05 = 11,615.75 : x
  2. Step 2: Convert to fraction form
    13,743.97/18,950.05 = 11,615.75/x
  3. Step 3: Cross multiply
    13,743.97x = 18,950.05 × 11,615.75
  4. Step 4: Simplify right side
    13,743.97x = 220,118,919.50
  5. Step 5: Solve for x
    x = 220,118,919.50/13,743.97
  6. Step 6: Final answer
    x = 16,015.68

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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.