Home / 8,389.24-12,579.06-2,764.24

Finding the Fourth Proportional to 8,389.24, 12,579.06 and 2,764.24

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Solution

The fourth proportional to 8,389.24, 12,579.06 and 2,764.24 is: 4,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.24 : 12,579.06 = 2,764.24 : x
  2. Step 2: Convert to fraction form
    8,389.24/12,579.06 = 2,764.24/x
  3. Step 3: Cross multiply
    8,389.24x = 12,579.06 × 2,764.24
  4. Step 4: Simplify right side
    8,389.24x = 34,771,540.81
  5. Step 5: Solve for x
    x = 34,771,540.81/8,389.24
  6. Step 6: Final answer
    x = 4,144.78

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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.