Home / 8,089.81-12,109.62-4,382.85

Finding the Fourth Proportional to 8,089.81, 12,109.62 and 4,382.85

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Solution

The fourth proportional to 8,089.81, 12,109.62 and 4,382.85 is: 6,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.81 : 12,109.62 = 4,382.85 : x
  2. Step 2: Convert to fraction form
    8,089.81/12,109.62 = 4,382.85/x
  3. Step 3: Cross multiply
    8,089.81x = 12,109.62 × 4,382.85
  4. Step 4: Simplify right side
    8,089.81x = 53,074,648.02
  5. Step 5: Solve for x
    x = 53,074,648.02/8,089.81
  6. Step 6: Final answer
    x = 6,560.68

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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.