Home / 11,919.20-16,444.69-6,882.75

Finding the Fourth Proportional to 11,919.20, 16,444.69 and 6,882.75

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Solution

The fourth proportional to 11,919.20, 16,444.69 and 6,882.75 is: 9,496.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.20 : 16,444.69 = 6,882.75 : x
  2. Step 2: Convert to fraction form
    11,919.20/16,444.69 = 6,882.75/x
  3. Step 3: Cross multiply
    11,919.20x = 16,444.69 × 6,882.75
  4. Step 4: Simplify right side
    11,919.20x = 113,184,672.89
  5. Step 5: Solve for x
    x = 113,184,672.89/11,919.20
  6. Step 6: Final answer
    x = 9,496.00

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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.