Home / 11,775.28-16,249.94-6,470.20

Finding the Fourth Proportional to 11,775.28, 16,249.94 and 6,470.20

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Solution

The fourth proportional to 11,775.28, 16,249.94 and 6,470.20 is: 8,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.28 : 16,249.94 = 6,470.20 : x
  2. Step 2: Convert to fraction form
    11,775.28/16,249.94 = 6,470.20/x
  3. Step 3: Cross multiply
    11,775.28x = 16,249.94 × 6,470.20
  4. Step 4: Simplify right side
    11,775.28x = 105,140,329.44
  5. Step 5: Solve for x
    x = 105,140,329.44/11,775.28
  6. Step 6: Final answer
    x = 8,928.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.