Home / 13,714.55-20,570.21-3,854.66

Finding the Fourth Proportional to 13,714.55, 20,570.21 and 3,854.66

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Solution

The fourth proportional to 13,714.55, 20,570.21 and 3,854.66 is: 5,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,714.55 : 20,570.21 = 3,854.66 : x
  2. Step 2: Convert to fraction form
    13,714.55/20,570.21 = 3,854.66/x
  3. Step 3: Cross multiply
    13,714.55x = 20,570.21 × 3,854.66
  4. Step 4: Simplify right side
    13,714.55x = 79,291,165.68
  5. Step 5: Solve for x
    x = 79,291,165.68/13,714.55
  6. Step 6: Final answer
    x = 5,781.54

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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.