Home / 13,146.24-19,719.53-3,786.41

Finding the Fourth Proportional to 13,146.24, 19,719.53 and 3,786.41

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Solution

The fourth proportional to 13,146.24, 19,719.53 and 3,786.41 is: 5,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.24 : 19,719.53 = 3,786.41 : x
  2. Step 2: Convert to fraction form
    13,146.24/19,719.53 = 3,786.41/x
  3. Step 3: Cross multiply
    13,146.24x = 19,719.53 × 3,786.41
  4. Step 4: Simplify right side
    13,146.24x = 74,666,176.31
  5. Step 5: Solve for x
    x = 74,666,176.31/13,146.24
  6. Step 6: Final answer
    x = 5,679.66

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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.