Home / 15,713.90-23,571.16-12,579.36

Finding the Fourth Proportional to 15,713.90, 23,571.16 and 12,579.36

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Solution

The fourth proportional to 15,713.90, 23,571.16 and 12,579.36 is: 18,869.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.90 : 23,571.16 = 12,579.36 : x
  2. Step 2: Convert to fraction form
    15,713.90/23,571.16 = 12,579.36/x
  3. Step 3: Cross multiply
    15,713.90x = 23,571.16 × 12,579.36
  4. Step 4: Simplify right side
    15,713.90x = 296,510,107.26
  5. Step 5: Solve for x
    x = 296,510,107.26/15,713.90
  6. Step 6: Final answer
    x = 18,869.29

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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.