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Finding the Fourth Proportional to 11,615.70, 17,400.15 and 8,093.70

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Solution

The fourth proportional to 11,615.70, 17,400.15 and 8,093.70 is: 12,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.70 : 17,400.15 = 8,093.70 : x
  2. Step 2: Convert to fraction form
    11,615.70/17,400.15 = 8,093.70/x
  3. Step 3: Cross multiply
    11,615.70x = 17,400.15 × 8,093.70
  4. Step 4: Simplify right side
    11,615.70x = 140,831,594.06
  5. Step 5: Solve for x
    x = 140,831,594.06/11,615.70
  6. Step 6: Final answer
    x = 12,124.25

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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.