Home / 13,431.11-20,146.67-4,197.11

Finding the Fourth Proportional to 13,431.11, 20,146.67 and 4,197.11

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Solution

The fourth proportional to 13,431.11, 20,146.67 and 4,197.11 is: 6,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.11 : 20,146.67 = 4,197.11 : x
  2. Step 2: Convert to fraction form
    13,431.11/20,146.67 = 4,197.11/x
  3. Step 3: Cross multiply
    13,431.11x = 20,146.67 × 4,197.11
  4. Step 4: Simplify right side
    13,431.11x = 84,557,769.14
  5. Step 5: Solve for x
    x = 84,557,769.14/13,431.11
  6. Step 6: Final answer
    x = 6,295.67

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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.