Home / 13,751.56-18,990.66-11,750.44

Finding the Fourth Proportional to 13,751.56, 18,990.66 and 11,750.44

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Solution

The fourth proportional to 13,751.56, 18,990.66 and 11,750.44 is: 16,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.56 : 18,990.66 = 11,750.44 : x
  2. Step 2: Convert to fraction form
    13,751.56/18,990.66 = 11,750.44/x
  3. Step 3: Cross multiply
    13,751.56x = 18,990.66 × 11,750.44
  4. Step 4: Simplify right side
    13,751.56x = 223,148,610.89
  5. Step 5: Solve for x
    x = 223,148,610.89/13,751.56
  6. Step 6: Final answer
    x = 16,227.15

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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.