Home / 8,553.20-12,824.92-4,389.80

Finding the Fourth Proportional to 8,553.20, 12,824.92 and 4,389.80

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Solution

The fourth proportional to 8,553.20, 12,824.92 and 4,389.80 is: 6,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.20 : 12,824.92 = 4,389.80 : x
  2. Step 2: Convert to fraction form
    8,553.20/12,824.92 = 4,389.80/x
  3. Step 3: Cross multiply
    8,553.20x = 12,824.92 × 4,389.80
  4. Step 4: Simplify right side
    8,553.20x = 56,298,833.82
  5. Step 5: Solve for x
    x = 56,298,833.82/8,553.20
  6. Step 6: Final answer
    x = 6,582.20

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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.