Home / 13,431.46-20,126.67-5,636.02

Finding the Fourth Proportional to 13,431.46, 20,126.67 and 5,636.02

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Solution

The fourth proportional to 13,431.46, 20,126.67 and 5,636.02 is: 8,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.46 : 20,126.67 = 5,636.02 : x
  2. Step 2: Convert to fraction form
    13,431.46/20,126.67 = 5,636.02/x
  3. Step 3: Cross multiply
    13,431.46x = 20,126.67 × 5,636.02
  4. Step 4: Simplify right side
    13,431.46x = 113,434,314.65
  5. Step 5: Solve for x
    x = 113,434,314.65/13,431.46
  6. Step 6: Final answer
    x = 8,445.42

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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.