Home / 13,136.24-19,710.12-5,742.56

Finding the Fourth Proportional to 13,136.24, 19,710.12 and 5,742.56

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Solution

The fourth proportional to 13,136.24, 19,710.12 and 5,742.56 is: 8,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.24 : 19,710.12 = 5,742.56 : x
  2. Step 2: Convert to fraction form
    13,136.24/19,710.12 = 5,742.56/x
  3. Step 3: Cross multiply
    13,136.24x = 19,710.12 × 5,742.56
  4. Step 4: Simplify right side
    13,136.24x = 113,186,546.71
  5. Step 5: Solve for x
    x = 113,186,546.71/13,136.24
  6. Step 6: Final answer
    x = 8,616.36

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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.