Home / 8,389.02-12,589.20-3,194.76

Finding the Fourth Proportional to 8,389.02, 12,589.20 and 3,194.76

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Solution

The fourth proportional to 8,389.02, 12,589.20 and 3,194.76 is: 4,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.02 : 12,589.20 = 3,194.76 : x
  2. Step 2: Convert to fraction form
    8,389.02/12,589.20 = 3,194.76/x
  3. Step 3: Cross multiply
    8,389.02x = 12,589.20 × 3,194.76
  4. Step 4: Simplify right side
    8,389.02x = 40,219,472.59
  5. Step 5: Solve for x
    x = 40,219,472.59/8,389.02
  6. Step 6: Final answer
    x = 4,794.30

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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.