Home / 13,670.53-20,505.18-3,809.59

Finding the Fourth Proportional to 13,670.53, 20,505.18 and 3,809.59

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Solution

The fourth proportional to 13,670.53, 20,505.18 and 3,809.59 is: 5,714.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.53 : 20,505.18 = 3,809.59 : x
  2. Step 2: Convert to fraction form
    13,670.53/20,505.18 = 3,809.59/x
  3. Step 3: Cross multiply
    13,670.53x = 20,505.18 × 3,809.59
  4. Step 4: Simplify right side
    13,670.53x = 78,116,328.68
  5. Step 5: Solve for x
    x = 78,116,328.68/13,670.53
  6. Step 6: Final answer
    x = 5,714.21

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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.