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Finding the Fourth Proportional to 8,899.64, 13,352.64 and 3,968.84

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Solution

The fourth proportional to 8,899.64, 13,352.64 and 3,968.84 is: 5,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.64 : 13,352.64 = 3,968.84 : x
  2. Step 2: Convert to fraction form
    8,899.64/13,352.64 = 3,968.84/x
  3. Step 3: Cross multiply
    8,899.64x = 13,352.64 × 3,968.84
  4. Step 4: Simplify right side
    8,899.64x = 52,994,491.74
  5. Step 5: Solve for x
    x = 52,994,491.74/8,899.64
  6. Step 6: Final answer
    x = 5,954.68

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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.