Home / 19,144.68-28,731.06-12,568.56

Finding the Fourth Proportional to 19,144.68, 28,731.06 and 12,568.56

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Solution

The fourth proportional to 19,144.68, 28,731.06 and 12,568.56 is: 18,862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.68 : 28,731.06 = 12,568.56 : x
  2. Step 2: Convert to fraction form
    19,144.68/28,731.06 = 12,568.56/x
  3. Step 3: Cross multiply
    19,144.68x = 28,731.06 × 12,568.56
  4. Step 4: Simplify right side
    19,144.68x = 361,108,051.47
  5. Step 5: Solve for x
    x = 361,108,051.47/19,144.68
  6. Step 6: Final answer
    x = 18,862.06

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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.