Home / 13,072.56-18,039.85-7,251.49

Finding the Fourth Proportional to 13,072.56, 18,039.85 and 7,251.49

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Solution

The fourth proportional to 13,072.56, 18,039.85 and 7,251.49 is: 10,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.56 : 18,039.85 = 7,251.49 : x
  2. Step 2: Convert to fraction form
    13,072.56/18,039.85 = 7,251.49/x
  3. Step 3: Cross multiply
    13,072.56x = 18,039.85 × 7,251.49
  4. Step 4: Simplify right side
    13,072.56x = 130,815,791.88
  5. Step 5: Solve for x
    x = 130,815,791.88/13,072.56
  6. Step 6: Final answer
    x = 10,006.90

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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.