Home / 13,755.98-18,982.94-8,089.62

Finding the Fourth Proportional to 13,755.98, 18,982.94 and 8,089.62

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Solution

The fourth proportional to 13,755.98, 18,982.94 and 8,089.62 is: 11,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.98 : 18,982.94 = 8,089.62 : x
  2. Step 2: Convert to fraction form
    13,755.98/18,982.94 = 8,089.62/x
  3. Step 3: Cross multiply
    13,755.98x = 18,982.94 × 8,089.62
  4. Step 4: Simplify right side
    13,755.98x = 153,564,730.63
  5. Step 5: Solve for x
    x = 153,564,730.63/13,755.98
  6. Step 6: Final answer
    x = 11,163.49

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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.