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Finding the Fourth Proportional to 16,528.86, 22,809.87 and 8,975.21

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Solution

The fourth proportional to 16,528.86, 22,809.87 and 8,975.21 is: 12,385.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,528.86 : 22,809.87 = 8,975.21 : x
  2. Step 2: Convert to fraction form
    16,528.86/22,809.87 = 8,975.21/x
  3. Step 3: Cross multiply
    16,528.86x = 22,809.87 × 8,975.21
  4. Step 4: Simplify right side
    16,528.86x = 204,723,259.27
  5. Step 5: Solve for x
    x = 204,723,259.27/16,528.86
  6. Step 6: Final answer
    x = 12,385.81

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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.