Home / 13,127.28-19,691.36-4,361.92

Finding the Fourth Proportional to 13,127.28, 19,691.36 and 4,361.92

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Solution

The fourth proportional to 13,127.28, 19,691.36 and 4,361.92 is: 6,543.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.28 : 19,691.36 = 4,361.92 : x
  2. Step 2: Convert to fraction form
    13,127.28/19,691.36 = 4,361.92/x
  3. Step 3: Cross multiply
    13,127.28x = 19,691.36 × 4,361.92
  4. Step 4: Simplify right side
    13,127.28x = 85,892,137.01
  5. Step 5: Solve for x
    x = 85,892,137.01/13,127.28
  6. Step 6: Final answer
    x = 6,543.03

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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.