Home / 12,462.57-18,700.34-5,072.49

Finding the Fourth Proportional to 12,462.57, 18,700.34 and 5,072.49

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Solution

The fourth proportional to 12,462.57, 18,700.34 and 5,072.49 is: 7,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.57 : 18,700.34 = 5,072.49 : x
  2. Step 2: Convert to fraction form
    12,462.57/18,700.34 = 5,072.49/x
  3. Step 3: Cross multiply
    12,462.57x = 18,700.34 × 5,072.49
  4. Step 4: Simplify right side
    12,462.57x = 94,857,262.28
  5. Step 5: Solve for x
    x = 94,857,262.28/12,462.57
  6. Step 6: Final answer
    x = 7,611.37

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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.