Home / 13,125.44-18,074.40-11,727.68

Finding the Fourth Proportional to 13,125.44, 18,074.40 and 11,727.68

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Solution

The fourth proportional to 13,125.44, 18,074.40 and 11,727.68 is: 16,149.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.44 : 18,074.40 = 11,727.68 : x
  2. Step 2: Convert to fraction form
    13,125.44/18,074.40 = 11,727.68/x
  3. Step 3: Cross multiply
    13,125.44x = 18,074.40 × 11,727.68
  4. Step 4: Simplify right side
    13,125.44x = 211,970,779.39
  5. Step 5: Solve for x
    x = 211,970,779.39/13,125.44
  6. Step 6: Final answer
    x = 16,149.61

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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.