Home / 13,239.73-19,862.33-3,880.05

Finding the Fourth Proportional to 13,239.73, 19,862.33 and 3,880.05

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Solution

The fourth proportional to 13,239.73, 19,862.33 and 3,880.05 is: 5,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.73 : 19,862.33 = 3,880.05 : x
  2. Step 2: Convert to fraction form
    13,239.73/19,862.33 = 3,880.05/x
  3. Step 3: Cross multiply
    13,239.73x = 19,862.33 × 3,880.05
  4. Step 4: Simplify right side
    13,239.73x = 77,066,814.12
  5. Step 5: Solve for x
    x = 77,066,814.12/13,239.73
  6. Step 6: Final answer
    x = 5,820.88

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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.