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Finding the Fourth Proportional to 8,814.21, 12,153.64 and 5,623.24

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Solution

The fourth proportional to 8,814.21, 12,153.64 and 5,623.24 is: 7,753.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.21 : 12,153.64 = 5,623.24 : x
  2. Step 2: Convert to fraction form
    8,814.21/12,153.64 = 5,623.24/x
  3. Step 3: Cross multiply
    8,814.21x = 12,153.64 × 5,623.24
  4. Step 4: Simplify right side
    8,814.21x = 68,342,834.59
  5. Step 5: Solve for x
    x = 68,342,834.59/8,814.21
  6. Step 6: Final answer
    x = 7,753.71

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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.