Home / 8,020.80-12,039.84-5,722.56

Finding the Fourth Proportional to 8,020.80, 12,039.84 and 5,722.56

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Solution

The fourth proportional to 8,020.80, 12,039.84 and 5,722.56 is: 8,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.80 : 12,039.84 = 5,722.56 : x
  2. Step 2: Convert to fraction form
    8,020.80/12,039.84 = 5,722.56/x
  3. Step 3: Cross multiply
    8,020.80x = 12,039.84 × 5,722.56
  4. Step 4: Simplify right side
    8,020.80x = 68,898,706.79
  5. Step 5: Solve for x
    x = 68,898,706.79/8,020.80
  6. Step 6: Final answer
    x = 8,590.00

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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.