Home / 13,434.80-20,160.04-5,642.96

Finding the Fourth Proportional to 13,434.80, 20,160.04 and 5,642.96

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Solution

The fourth proportional to 13,434.80, 20,160.04 and 5,642.96 is: 8,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.80 : 20,160.04 = 5,642.96 : x
  2. Step 2: Convert to fraction form
    13,434.80/20,160.04 = 5,642.96/x
  3. Step 3: Cross multiply
    13,434.80x = 20,160.04 × 5,642.96
  4. Step 4: Simplify right side
    13,434.80x = 113,762,299.32
  5. Step 5: Solve for x
    x = 113,762,299.32/13,434.80
  6. Step 6: Final answer
    x = 8,467.73

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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.