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Finding the Fourth Proportional to 17,760.60, 26,640.81 and 8,401.59

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Solution

The fourth proportional to 17,760.60, 26,640.81 and 8,401.59 is: 12,602.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,760.60 : 26,640.81 = 8,401.59 : x
  2. Step 2: Convert to fraction form
    17,760.60/26,640.81 = 8,401.59/x
  3. Step 3: Cross multiply
    17,760.60x = 26,640.81 × 8,401.59
  4. Step 4: Simplify right side
    17,760.60x = 223,825,162.89
  5. Step 5: Solve for x
    x = 223,825,162.89/17,760.60
  6. Step 6: Final answer
    x = 12,602.34

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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.