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Finding the Fourth Proportional to 15,093.41, 20,828.81 and 8,287.52

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Solution

The fourth proportional to 15,093.41, 20,828.81 and 8,287.52 is: 11,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,093.41 : 20,828.81 = 8,287.52 : x
  2. Step 2: Convert to fraction form
    15,093.41/20,828.81 = 8,287.52/x
  3. Step 3: Cross multiply
    15,093.41x = 20,828.81 × 8,287.52
  4. Step 4: Simplify right side
    15,093.41x = 172,619,096.03
  5. Step 5: Solve for x
    x = 172,619,096.03/15,093.41
  6. Step 6: Final answer
    x = 11,436.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.