Home / 19,145.80-28,718.68-5,999.19

Finding the Fourth Proportional to 19,145.80, 28,718.68 and 5,999.19

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Solution

The fourth proportional to 19,145.80, 28,718.68 and 5,999.19 is: 8,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.80 : 28,718.68 = 5,999.19 : x
  2. Step 2: Convert to fraction form
    19,145.80/28,718.68 = 5,999.19/x
  3. Step 3: Cross multiply
    19,145.80x = 28,718.68 × 5,999.19
  4. Step 4: Simplify right side
    19,145.80x = 172,288,817.87
  5. Step 5: Solve for x
    x = 172,288,817.87/19,145.80
  6. Step 6: Final answer
    x = 8,998.78

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1.5x scale

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.