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Finding the Fourth Proportional to 13,999, 20,998.37 and 5,677.04

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Solution

The fourth proportional to 13,999, 20,998.37 and 5,677.04 is: 8,515.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999 : 20,998.37 = 5,677.04 : x
  2. Step 2: Convert to fraction form
    13,999/20,998.37 = 5,677.04/x
  3. Step 3: Cross multiply
    13,999x = 20,998.37 × 5,677.04
  4. Step 4: Simplify right side
    13,999x = 119,208,586.42
  5. Step 5: Solve for x
    x = 119,208,586.42/13,999
  6. Step 6: Final answer
    x = 8,515.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.