Home / 13,136.28-19,707.39-4,371.54

Finding the Fourth Proportional to 13,136.28, 19,707.39 and 4,371.54

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Solution

The fourth proportional to 13,136.28, 19,707.39 and 4,371.54 is: 6,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.28 : 19,707.39 = 4,371.54 : x
  2. Step 2: Convert to fraction form
    13,136.28/19,707.39 = 4,371.54/x
  3. Step 3: Cross multiply
    13,136.28x = 19,707.39 × 4,371.54
  4. Step 4: Simplify right side
    13,136.28x = 86,151,643.68
  5. Step 5: Solve for x
    x = 86,151,643.68/13,136.28
  6. Step 6: Final answer
    x = 6,558.30

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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.