Home / 8,919.09-13,378.83-2,679.24

Finding the Fourth Proportional to 8,919.09, 13,378.83 and 2,679.24

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Solution

The fourth proportional to 8,919.09, 13,378.83 and 2,679.24 is: 4,018.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.09 : 13,378.83 = 2,679.24 : x
  2. Step 2: Convert to fraction form
    8,919.09/13,378.83 = 2,679.24/x
  3. Step 3: Cross multiply
    8,919.09x = 13,378.83 × 2,679.24
  4. Step 4: Simplify right side
    8,919.09x = 35,845,096.49
  5. Step 5: Solve for x
    x = 35,845,096.49/8,919.09
  6. Step 6: Final answer
    x = 4,018.92

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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.