Home / 8,899.11-12,279.70-4,919.68

Finding the Fourth Proportional to 8,899.11, 12,279.70 and 4,919.68

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Solution

The fourth proportional to 8,899.11, 12,279.70 and 4,919.68 is: 6,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.11 : 12,279.70 = 4,919.68 : x
  2. Step 2: Convert to fraction form
    8,899.11/12,279.70 = 4,919.68/x
  3. Step 3: Cross multiply
    8,899.11x = 12,279.70 × 4,919.68
  4. Step 4: Simplify right side
    8,899.11x = 60,412,194.50
  5. Step 5: Solve for x
    x = 60,412,194.50/8,899.11
  6. Step 6: Final answer
    x = 6,788.57

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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.