Home / 13,419.24-20,131.18-4,534.64

Finding the Fourth Proportional to 13,419.24, 20,131.18 and 4,534.64

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Solution

The fourth proportional to 13,419.24, 20,131.18 and 4,534.64 is: 6,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.24 : 20,131.18 = 4,534.64 : x
  2. Step 2: Convert to fraction form
    13,419.24/20,131.18 = 4,534.64/x
  3. Step 3: Cross multiply
    13,419.24x = 20,131.18 × 4,534.64
  4. Step 4: Simplify right side
    13,419.24x = 91,287,617.57
  5. Step 5: Solve for x
    x = 91,287,617.57/13,419.24
  6. Step 6: Final answer
    x = 6,802.74

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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.