Home / 13,754.76-20,635.25-4,989.66

Finding the Fourth Proportional to 13,754.76, 20,635.25 and 4,989.66

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Solution

The fourth proportional to 13,754.76, 20,635.25 and 4,989.66 is: 7,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.76 : 20,635.25 = 4,989.66 : x
  2. Step 2: Convert to fraction form
    13,754.76/20,635.25 = 4,989.66/x
  3. Step 3: Cross multiply
    13,754.76x = 20,635.25 × 4,989.66
  4. Step 4: Simplify right side
    13,754.76x = 102,962,856.57
  5. Step 5: Solve for x
    x = 102,962,856.57/13,754.76
  6. Step 6: Final answer
    x = 7,485.62

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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.