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Finding the Fourth Proportional to 8,807.42, 13,212.35 and 2,965.70

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Solution

The fourth proportional to 8,807.42, 13,212.35 and 2,965.70 is: 4,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.42 : 13,212.35 = 2,965.70 : x
  2. Step 2: Convert to fraction form
    8,807.42/13,212.35 = 2,965.70/x
  3. Step 3: Cross multiply
    8,807.42x = 13,212.35 × 2,965.70
  4. Step 4: Simplify right side
    8,807.42x = 39,183,785.50
  5. Step 5: Solve for x
    x = 39,183,785.50/8,807.42
  6. Step 6: Final answer
    x = 4,448.95

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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.