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Finding the Fourth Proportional to 8,965.84, 12,364.36 and 5,736.68

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Solution

The fourth proportional to 8,965.84, 12,364.36 and 5,736.68 is: 7,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.84 : 12,364.36 = 5,736.68 : x
  2. Step 2: Convert to fraction form
    8,965.84/12,364.36 = 5,736.68/x
  3. Step 3: Cross multiply
    8,965.84x = 12,364.36 × 5,736.68
  4. Step 4: Simplify right side
    8,965.84x = 70,930,368.44
  5. Step 5: Solve for x
    x = 70,930,368.44/8,965.84
  6. Step 6: Final answer
    x = 7,911.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.