Home / 13,977.21-20,965.95-4,116.67

Finding the Fourth Proportional to 13,977.21, 20,965.95 and 4,116.67

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Solution

The fourth proportional to 13,977.21, 20,965.95 and 4,116.67 is: 6,175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.21 : 20,965.95 = 4,116.67 : x
  2. Step 2: Convert to fraction form
    13,977.21/20,965.95 = 4,116.67/x
  3. Step 3: Cross multiply
    13,977.21x = 20,965.95 × 4,116.67
  4. Step 4: Simplify right side
    13,977.21x = 86,309,897.39
  5. Step 5: Solve for x
    x = 86,309,897.39/13,977.21
  6. Step 6: Final answer
    x = 6,175.04

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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.