Home / 14,981.82-22,472.74-5,121.20

Finding the Fourth Proportional to 14,981.82, 22,472.74 and 5,121.20

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Solution

The fourth proportional to 14,981.82, 22,472.74 and 5,121.20 is: 7,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.82 : 22,472.74 = 5,121.20 : x
  2. Step 2: Convert to fraction form
    14,981.82/22,472.74 = 5,121.20/x
  3. Step 3: Cross multiply
    14,981.82x = 22,472.74 × 5,121.20
  4. Step 4: Simplify right side
    14,981.82x = 115,087,396.09
  5. Step 5: Solve for x
    x = 115,087,396.09/14,981.82
  6. Step 6: Final answer
    x = 7,681.80

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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.