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Finding the Fourth Proportional to 10,163.30, 14,025 and 5,687.56

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Solution

The fourth proportional to 10,163.30, 14,025 and 5,687.56 is: 7,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,163.30 : 14,025 = 5,687.56 : x
  2. Step 2: Convert to fraction form
    10,163.30/14,025 = 5,687.56/x
  3. Step 3: Cross multiply
    10,163.30x = 14,025 × 5,687.56
  4. Step 4: Simplify right side
    10,163.30x = 79,768,029
  5. Step 5: Solve for x
    x = 79,768,029/10,163.30
  6. Step 6: Final answer
    x = 7,848.63

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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.