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Finding the Fourth Proportional to 17,388.75, 26,083.13 and 8,154.75

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Solution

The fourth proportional to 17,388.75, 26,083.13 and 8,154.75 is: 12,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388.75 : 26,083.13 = 8,154.75 : x
  2. Step 2: Convert to fraction form
    17,388.75/26,083.13 = 8,154.75/x
  3. Step 3: Cross multiply
    17,388.75x = 26,083.13 × 8,154.75
  4. Step 4: Simplify right side
    17,388.75x = 212,701,363.59
  5. Step 5: Solve for x
    x = 212,701,363.59/17,388.75
  6. Step 6: Final answer
    x = 12,232.13

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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.