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Finding the Fourth Proportional to 15,214.92, 20,994.03 and 8,500.29

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Solution

The fourth proportional to 15,214.92, 20,994.03 and 8,500.29 is: 11,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.92 : 20,994.03 = 8,500.29 : x
  2. Step 2: Convert to fraction form
    15,214.92/20,994.03 = 8,500.29/x
  3. Step 3: Cross multiply
    15,214.92x = 20,994.03 × 8,500.29
  4. Step 4: Simplify right side
    15,214.92x = 178,455,343.27
  5. Step 5: Solve for x
    x = 178,455,343.27/15,214.92
  6. Step 6: Final answer
    x = 11,728.97

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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.