Home / 8,899.29-12,279.94-4,919.85

Finding the Fourth Proportional to 8,899.29, 12,279.94 and 4,919.85

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Solution

The fourth proportional to 8,899.29, 12,279.94 and 4,919.85 is: 6,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.29 : 12,279.94 = 4,919.85 : x
  2. Step 2: Convert to fraction form
    8,899.29/12,279.94 = 4,919.85/x
  3. Step 3: Cross multiply
    8,899.29x = 12,279.94 × 4,919.85
  4. Step 4: Simplify right side
    8,899.29x = 60,415,462.81
  5. Step 5: Solve for x
    x = 60,415,462.81/8,899.29
  6. Step 6: Final answer
    x = 6,788.80

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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.