Home / 12,922.03-19,382.64-3,688.03

Finding the Fourth Proportional to 12,922.03, 19,382.64 and 3,688.03

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Solution

The fourth proportional to 12,922.03, 19,382.64 and 3,688.03 is: 5,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.03 : 19,382.64 = 3,688.03 : x
  2. Step 2: Convert to fraction form
    12,922.03/19,382.64 = 3,688.03/x
  3. Step 3: Cross multiply
    12,922.03x = 19,382.64 × 3,688.03
  4. Step 4: Simplify right side
    12,922.03x = 71,483,757.80
  5. Step 5: Solve for x
    x = 71,483,757.80/12,922.03
  6. Step 6: Final answer
    x = 5,531.93

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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.