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Finding the Fourth Proportional to 12,469.92, 17,208.44 and 6,880.92

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Solution

The fourth proportional to 12,469.92, 17,208.44 and 6,880.92 is: 9,495.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.92 : 17,208.44 = 6,880.92 : x
  2. Step 2: Convert to fraction form
    12,469.92/17,208.44 = 6,880.92/x
  3. Step 3: Cross multiply
    12,469.92x = 17,208.44 × 6,880.92
  4. Step 4: Simplify right side
    12,469.92x = 118,409,898.96
  5. Step 5: Solve for x
    x = 118,409,898.96/12,469.92
  6. Step 6: Final answer
    x = 9,495.64

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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.