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Finding the Fourth Proportional to 8,899.78, 12,284.62 and 6,247.84

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Solution

The fourth proportional to 8,899.78, 12,284.62 and 6,247.84 is: 8,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.78 : 12,284.62 = 6,247.84 : x
  2. Step 2: Convert to fraction form
    8,899.78/12,284.62 = 6,247.84/x
  3. Step 3: Cross multiply
    8,899.78x = 12,284.62 × 6,247.84
  4. Step 4: Simplify right side
    8,899.78x = 76,752,340.22
  5. Step 5: Solve for x
    x = 76,752,340.22/8,899.78
  6. Step 6: Final answer
    x = 8,624.07

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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.