Home / 13,127.28-19,690.99-3,266.56

Finding the Fourth Proportional to 13,127.28, 19,690.99 and 3,266.56

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Solution

The fourth proportional to 13,127.28, 19,690.99 and 3,266.56 is: 4,899.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.28 : 19,690.99 = 3,266.56 : x
  2. Step 2: Convert to fraction form
    13,127.28/19,690.99 = 3,266.56/x
  3. Step 3: Cross multiply
    13,127.28x = 19,690.99 × 3,266.56
  4. Step 4: Simplify right side
    13,127.28x = 64,321,800.29
  5. Step 5: Solve for x
    x = 64,321,800.29/13,127.28
  6. Step 6: Final answer
    x = 4,899.86

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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.