Home / 13,489.76-20,222.22-9,108.74

Finding the Fourth Proportional to 13,489.76, 20,222.22 and 9,108.74

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Solution

The fourth proportional to 13,489.76, 20,222.22 and 9,108.74 is: 13,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.76 : 20,222.22 = 9,108.74 : x
  2. Step 2: Convert to fraction form
    13,489.76/20,222.22 = 9,108.74/x
  3. Step 3: Cross multiply
    13,489.76x = 20,222.22 × 9,108.74
  4. Step 4: Simplify right side
    13,489.76x = 184,198,944.20
  5. Step 5: Solve for x
    x = 184,198,944.20/13,489.76
  6. Step 6: Final answer
    x = 13,654.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.