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Finding the Fourth Proportional to 17,498.40, 26,276.40 and 11,680.80

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Solution

The fourth proportional to 17,498.40, 26,276.40 and 11,680.80 is: 17,540.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,498.40 : 26,276.40 = 11,680.80 : x
  2. Step 2: Convert to fraction form
    17,498.40/26,276.40 = 11,680.80/x
  3. Step 3: Cross multiply
    17,498.40x = 26,276.40 × 11,680.80
  4. Step 4: Simplify right side
    17,498.40x = 306,929,373.12
  5. Step 5: Solve for x
    x = 306,929,373.12/17,498.40
  6. Step 6: Final answer
    x = 17,540.43

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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.