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Finding the Fourth Proportional to 9,388.53, 14,138.22 and 8,170.59

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Solution

The fourth proportional to 9,388.53, 14,138.22 and 8,170.59 is: 12,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,388.53 : 14,138.22 = 8,170.59 : x
  2. Step 2: Convert to fraction form
    9,388.53/14,138.22 = 8,170.59/x
  3. Step 3: Cross multiply
    9,388.53x = 14,138.22 × 8,170.59
  4. Step 4: Simplify right side
    9,388.53x = 115,517,598.95
  5. Step 5: Solve for x
    x = 115,517,598.95/9,388.53
  6. Step 6: Final answer
    x = 12,304.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.