Home / 13,764.96-18,998.66-9,049.68

Finding the Fourth Proportional to 13,764.96, 18,998.66 and 9,049.68

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Solution

The fourth proportional to 13,764.96, 18,998.66 and 9,049.68 is: 12,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.96 : 18,998.66 = 9,049.68 : x
  2. Step 2: Convert to fraction form
    13,764.96/18,998.66 = 9,049.68/x
  3. Step 3: Cross multiply
    13,764.96x = 18,998.66 × 9,049.68
  4. Step 4: Simplify right side
    13,764.96x = 171,931,793.43
  5. Step 5: Solve for x
    x = 171,931,793.43/13,764.96
  6. Step 6: Final answer
    x = 12,490.54

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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.