Home / 13,866.21-20,811.67-6,474.76

Finding the Fourth Proportional to 13,866.21, 20,811.67 and 6,474.76

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Solution

The fourth proportional to 13,866.21, 20,811.67 and 6,474.76 is: 9,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.21 : 20,811.67 = 6,474.76 : x
  2. Step 2: Convert to fraction form
    13,866.21/20,811.67 = 6,474.76/x
  3. Step 3: Cross multiply
    13,866.21x = 20,811.67 × 6,474.76
  4. Step 4: Simplify right side
    13,866.21x = 134,750,500.23
  5. Step 5: Solve for x
    x = 134,750,500.23/13,866.21
  6. Step 6: Final answer
    x = 9,717.90

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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.