Home / 13,636.11-20,473.32-6,977.37

Finding the Fourth Proportional to 13,636.11, 20,473.32 and 6,977.37

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Solution

The fourth proportional to 13,636.11, 20,473.32 and 6,977.37 is: 10,475.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.11 : 20,473.32 = 6,977.37 : x
  2. Step 2: Convert to fraction form
    13,636.11/20,473.32 = 6,977.37/x
  3. Step 3: Cross multiply
    13,636.11x = 20,473.32 × 6,977.37
  4. Step 4: Simplify right side
    13,636.11x = 142,850,031.71
  5. Step 5: Solve for x
    x = 142,850,031.71/13,636.11
  6. Step 6: Final answer
    x = 10,475.86

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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.