Home / 10,310.20-15,443.70-8,582.20

Finding the Fourth Proportional to 10,310.20, 15,443.70 and 8,582.20

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Solution

The fourth proportional to 10,310.20, 15,443.70 and 8,582.20 is: 12,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,310.20 : 15,443.70 = 8,582.20 : x
  2. Step 2: Convert to fraction form
    10,310.20/15,443.70 = 8,582.20/x
  3. Step 3: Cross multiply
    10,310.20x = 15,443.70 × 8,582.20
  4. Step 4: Simplify right side
    10,310.20x = 132,540,922.14
  5. Step 5: Solve for x
    x = 132,540,922.14/10,310.20
  6. Step 6: Final answer
    x = 12,855.32

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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.