Home / 13,575.62-20,370.40-6,467.91

Finding the Fourth Proportional to 13,575.62, 20,370.40 and 6,467.91

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Solution

The fourth proportional to 13,575.62, 20,370.40 and 6,467.91 is: 9,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.62 : 20,370.40 = 6,467.91 : x
  2. Step 2: Convert to fraction form
    13,575.62/20,370.40 = 6,467.91/x
  3. Step 3: Cross multiply
    13,575.62x = 20,370.40 × 6,467.91
  4. Step 4: Simplify right side
    13,575.62x = 131,753,913.86
  5. Step 5: Solve for x
    x = 131,753,913.86/13,575.62
  6. Step 6: Final answer
    x = 9,705.19

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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.