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Finding the Fourth Proportional to 8,857.71, 13,281.09 and 3,308.20

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Solution

The fourth proportional to 8,857.71, 13,281.09 and 3,308.20 is: 4,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.71 : 13,281.09 = 3,308.20 : x
  2. Step 2: Convert to fraction form
    8,857.71/13,281.09 = 3,308.20/x
  3. Step 3: Cross multiply
    8,857.71x = 13,281.09 × 3,308.20
  4. Step 4: Simplify right side
    8,857.71x = 43,936,501.94
  5. Step 5: Solve for x
    x = 43,936,501.94/8,857.71
  6. Step 6: Final answer
    x = 4,960.26

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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.