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Finding the Fourth Proportional to 15,107.45, 20,848.96 and 8,393.73

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Solution

The fourth proportional to 15,107.45, 20,848.96 and 8,393.73 is: 11,583.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.45 : 20,848.96 = 8,393.73 : x
  2. Step 2: Convert to fraction form
    15,107.45/20,848.96 = 8,393.73/x
  3. Step 3: Cross multiply
    15,107.45x = 20,848.96 × 8,393.73
  4. Step 4: Simplify right side
    15,107.45x = 175,000,473.33
  5. Step 5: Solve for x
    x = 175,000,473.33/15,107.45
  6. Step 6: Final answer
    x = 11,583.72

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Double scale
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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.