Home / 8,919.48-13,378.77-4,236.06

Finding the Fourth Proportional to 8,919.48, 13,378.77 and 4,236.06

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Solution

The fourth proportional to 8,919.48, 13,378.77 and 4,236.06 is: 6,353.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.48 : 13,378.77 = 4,236.06 : x
  2. Step 2: Convert to fraction form
    8,919.48/13,378.77 = 4,236.06/x
  3. Step 3: Cross multiply
    8,919.48x = 13,378.77 × 4,236.06
  4. Step 4: Simplify right side
    8,919.48x = 56,673,272.45
  5. Step 5: Solve for x
    x = 56,673,272.45/8,919.48
  6. Step 6: Final answer
    x = 6,353.88

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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.