Home / 13,755.47-20,617.23-5,855.49

Finding the Fourth Proportional to 13,755.47, 20,617.23 and 5,855.49

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Solution

The fourth proportional to 13,755.47, 20,617.23 and 5,855.49 is: 8,776.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.47 : 20,617.23 = 5,855.49 : x
  2. Step 2: Convert to fraction form
    13,755.47/20,617.23 = 5,855.49/x
  3. Step 3: Cross multiply
    13,755.47x = 20,617.23 × 5,855.49
  4. Step 4: Simplify right side
    13,755.47x = 120,724,006.05
  5. Step 5: Solve for x
    x = 120,724,006.05/13,755.47
  6. Step 6: Final answer
    x = 8,776.44

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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.