Home / 13,943.23-19,239.15-7,893.43

Finding the Fourth Proportional to 13,943.23, 19,239.15 and 7,893.43

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Solution

The fourth proportional to 13,943.23, 19,239.15 and 7,893.43 is: 10,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.23 : 19,239.15 = 7,893.43 : x
  2. Step 2: Convert to fraction form
    13,943.23/19,239.15 = 7,893.43/x
  3. Step 3: Cross multiply
    13,943.23x = 19,239.15 × 7,893.43
  4. Step 4: Simplify right side
    13,943.23x = 151,862,883.78
  5. Step 5: Solve for x
    x = 151,862,883.78/13,943.23
  6. Step 6: Final answer
    x = 10,891.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.