Home / 13,749.96-20,610.84-5,426.61

Finding the Fourth Proportional to 13,749.96, 20,610.84 and 5,426.61

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Solution

The fourth proportional to 13,749.96, 20,610.84 and 5,426.61 is: 8,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.96 : 20,610.84 = 5,426.61 : x
  2. Step 2: Convert to fraction form
    13,749.96/20,610.84 = 5,426.61/x
  3. Step 3: Cross multiply
    13,749.96x = 20,610.84 × 5,426.61
  4. Step 4: Simplify right side
    13,749.96x = 111,846,990.45
  5. Step 5: Solve for x
    x = 111,846,990.45/13,749.96
  6. Step 6: Final answer
    x = 8,134.35

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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.