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Finding the Fourth Proportional to 8,719.68, 13,073.04 and 5,256.12

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Solution

The fourth proportional to 8,719.68, 13,073.04 and 5,256.12 is: 7,880.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.68 : 13,073.04 = 5,256.12 : x
  2. Step 2: Convert to fraction form
    8,719.68/13,073.04 = 5,256.12/x
  3. Step 3: Cross multiply
    8,719.68x = 13,073.04 × 5,256.12
  4. Step 4: Simplify right side
    8,719.68x = 68,713,467.00
  5. Step 5: Solve for x
    x = 68,713,467.00/8,719.68
  6. Step 6: Final answer
    x = 7,880.27

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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.