Home / 14,121.40-21,168.33-6,723.87

Finding the Fourth Proportional to 14,121.40, 21,168.33 and 6,723.87

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Solution

The fourth proportional to 14,121.40, 21,168.33 and 6,723.87 is: 10,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.40 : 21,168.33 = 6,723.87 : x
  2. Step 2: Convert to fraction form
    14,121.40/21,168.33 = 6,723.87/x
  3. Step 3: Cross multiply
    14,121.40x = 21,168.33 × 6,723.87
  4. Step 4: Simplify right side
    14,121.40x = 142,333,099.04
  5. Step 5: Solve for x
    x = 142,333,099.04/14,121.40
  6. Step 6: Final answer
    x = 10,079.25

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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.