Home / 10,756.48-16,135.78-4,183.20

Finding the Fourth Proportional to 10,756.48, 16,135.78 and 4,183.20

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Solution

The fourth proportional to 10,756.48, 16,135.78 and 4,183.20 is: 6,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,756.48 : 16,135.78 = 4,183.20 : x
  2. Step 2: Convert to fraction form
    10,756.48/16,135.78 = 4,183.20/x
  3. Step 3: Cross multiply
    10,756.48x = 16,135.78 × 4,183.20
  4. Step 4: Simplify right side
    10,756.48x = 67,499,194.90
  5. Step 5: Solve for x
    x = 67,499,194.90/10,756.48
  6. Step 6: Final answer
    x = 6,275.21

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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.