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Finding the Fourth Proportional to 14,469.72, 21,813.03 and 13,505.27

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Solution

The fourth proportional to 14,469.72, 21,813.03 and 13,505.27 is: 20,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,469.72 : 21,813.03 = 13,505.27 : x
  2. Step 2: Convert to fraction form
    14,469.72/21,813.03 = 13,505.27/x
  3. Step 3: Cross multiply
    14,469.72x = 21,813.03 × 13,505.27
  4. Step 4: Simplify right side
    14,469.72x = 294,590,859.67
  5. Step 5: Solve for x
    x = 294,590,859.67/14,469.72
  6. Step 6: Final answer
    x = 20,359.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.