Home / 13,481.76-20,225.36-5,690.56

Finding the Fourth Proportional to 13,481.76, 20,225.36 and 5,690.56

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Solution

The fourth proportional to 13,481.76, 20,225.36 and 5,690.56 is: 8,536.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.76 : 20,225.36 = 5,690.56 : x
  2. Step 2: Convert to fraction form
    13,481.76/20,225.36 = 5,690.56/x
  3. Step 3: Cross multiply
    13,481.76x = 20,225.36 × 5,690.56
  4. Step 4: Simplify right side
    13,481.76x = 115,093,624.60
  5. Step 5: Solve for x
    x = 115,093,624.60/13,481.76
  6. Step 6: Final answer
    x = 8,536.99

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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.