Home / 13,122.35-19,681.67-3,763.17

Finding the Fourth Proportional to 13,122.35, 19,681.67 and 3,763.17

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Solution

The fourth proportional to 13,122.35, 19,681.67 and 3,763.17 is: 5,644.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.35 : 19,681.67 = 3,763.17 : x
  2. Step 2: Convert to fraction form
    13,122.35/19,681.67 = 3,763.17/x
  3. Step 3: Cross multiply
    13,122.35x = 19,681.67 × 3,763.17
  4. Step 4: Simplify right side
    13,122.35x = 74,065,470.09
  5. Step 5: Solve for x
    x = 74,065,470.09/13,122.35
  6. Step 6: Final answer
    x = 5,644.22

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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.