Home / 8,190.89-12,288.09-2,926.16

Finding the Fourth Proportional to 8,190.89, 12,288.09 and 2,926.16

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Solution

The fourth proportional to 8,190.89, 12,288.09 and 2,926.16 is: 4,389.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.89 : 12,288.09 = 2,926.16 : x
  2. Step 2: Convert to fraction form
    8,190.89/12,288.09 = 2,926.16/x
  3. Step 3: Cross multiply
    8,190.89x = 12,288.09 × 2,926.16
  4. Step 4: Simplify right side
    8,190.89x = 35,956,917.43
  5. Step 5: Solve for x
    x = 35,956,917.43/8,190.89
  6. Step 6: Final answer
    x = 4,389.87

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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.