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Finding the Fourth Proportional to 14,614.32, 20,163.00 and 8,943.15

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Solution

The fourth proportional to 14,614.32, 20,163.00 and 8,943.15 is: 12,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.32 : 20,163.00 = 8,943.15 : x
  2. Step 2: Convert to fraction form
    14,614.32/20,163.00 = 8,943.15/x
  3. Step 3: Cross multiply
    14,614.32x = 20,163.00 × 8,943.15
  4. Step 4: Simplify right side
    14,614.32x = 180,320,755.81
  5. Step 5: Solve for x
    x = 180,320,755.81/14,614.32
  6. Step 6: Final answer
    x = 12,338.63

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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.