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Finding the Fourth Proportional to 15,025, 20,735.46 and 8,401

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Solution

The fourth proportional to 15,025, 20,735.46 and 8,401 is: 11,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025 : 20,735.46 = 8,401 : x
  2. Step 2: Convert to fraction form
    15,025/20,735.46 = 8,401/x
  3. Step 3: Cross multiply
    15,025x = 20,735.46 × 8,401
  4. Step 4: Simplify right side
    15,025x = 174,198,599.46
  5. Step 5: Solve for x
    x = 174,198,599.46/15,025
  6. Step 6: Final answer
    x = 11,593.92

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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.