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Finding the Fourth Proportional to 11,880.54, 17,809.04 and 6,617.97

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Solution

The fourth proportional to 11,880.54, 17,809.04 and 6,617.97 is: 9,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.54 : 17,809.04 = 6,617.97 : x
  2. Step 2: Convert to fraction form
    11,880.54/17,809.04 = 6,617.97/x
  3. Step 3: Cross multiply
    11,880.54x = 17,809.04 × 6,617.97
  4. Step 4: Simplify right side
    11,880.54x = 117,859,708.99
  5. Step 5: Solve for x
    x = 117,859,708.99/11,880.54
  6. Step 6: Final answer
    x = 9,920.40

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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.