Home / 13,020.85-19,532.43-3,660.95

Finding the Fourth Proportional to 13,020.85, 19,532.43 and 3,660.95

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Solution

The fourth proportional to 13,020.85, 19,532.43 and 3,660.95 is: 5,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.85 : 19,532.43 = 3,660.95 : x
  2. Step 2: Convert to fraction form
    13,020.85/19,532.43 = 3,660.95/x
  3. Step 3: Cross multiply
    13,020.85x = 19,532.43 × 3,660.95
  4. Step 4: Simplify right side
    13,020.85x = 71,507,259.53
  5. Step 5: Solve for x
    x = 71,507,259.53/13,020.85
  6. Step 6: Final answer
    x = 5,491.75

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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.