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Finding the Fourth Proportional to 8,459.88, 12,680.01 and 4,556.09

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Solution

The fourth proportional to 8,459.88, 12,680.01 and 4,556.09 is: 6,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.88 : 12,680.01 = 4,556.09 : x
  2. Step 2: Convert to fraction form
    8,459.88/12,680.01 = 4,556.09/x
  3. Step 3: Cross multiply
    8,459.88x = 12,680.01 × 4,556.09
  4. Step 4: Simplify right side
    8,459.88x = 57,771,203.36
  5. Step 5: Solve for x
    x = 57,771,203.36/8,459.88
  6. Step 6: Final answer
    x = 6,828.84

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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.