Home / 13,586.67-20,376.81-3,726.72

Finding the Fourth Proportional to 13,586.67, 20,376.81 and 3,726.72

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Solution

The fourth proportional to 13,586.67, 20,376.81 and 3,726.72 is: 5,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.67 : 20,376.81 = 3,726.72 : x
  2. Step 2: Convert to fraction form
    13,586.67/20,376.81 = 3,726.72/x
  3. Step 3: Cross multiply
    13,586.67x = 20,376.81 × 3,726.72
  4. Step 4: Simplify right side
    13,586.67x = 75,938,665.36
  5. Step 5: Solve for x
    x = 75,938,665.36/13,586.67
  6. Step 6: Final answer
    x = 5,589.20

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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.