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Finding the Fourth Proportional to 12,469.66, 17,208.19 and 6,880.66

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Solution

The fourth proportional to 12,469.66, 17,208.19 and 6,880.66 is: 9,495.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.66 : 17,208.19 = 6,880.66 : x
  2. Step 2: Convert to fraction form
    12,469.66/17,208.19 = 6,880.66/x
  3. Step 3: Cross multiply
    12,469.66x = 17,208.19 × 6,880.66
  4. Step 4: Simplify right side
    12,469.66x = 118,403,704.61
  5. Step 5: Solve for x
    x = 118,403,704.61/12,469.66
  6. Step 6: Final answer
    x = 9,495.34

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1.5x scale

Why These Related Problems?

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