Home / 12,137.37-18,213.14-5,116.96

Finding the Fourth Proportional to 12,137.37, 18,213.14 and 5,116.96

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Solution

The fourth proportional to 12,137.37, 18,213.14 and 5,116.96 is: 7,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.37 : 18,213.14 = 5,116.96 : x
  2. Step 2: Convert to fraction form
    12,137.37/18,213.14 = 5,116.96/x
  3. Step 3: Cross multiply
    12,137.37x = 18,213.14 × 5,116.96
  4. Step 4: Simplify right side
    12,137.37x = 93,195,837.74
  5. Step 5: Solve for x
    x = 93,195,837.74/12,137.37
  6. Step 6: Final answer
    x = 7,678.42

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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.