Home / 12,357.78-18,513.44-6,110.52

Finding the Fourth Proportional to 12,357.78, 18,513.44 and 6,110.52

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Solution

The fourth proportional to 12,357.78, 18,513.44 and 6,110.52 is: 9,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.78 : 18,513.44 = 6,110.52 : x
  2. Step 2: Convert to fraction form
    12,357.78/18,513.44 = 6,110.52/x
  3. Step 3: Cross multiply
    12,357.78x = 18,513.44 × 6,110.52
  4. Step 4: Simplify right side
    12,357.78x = 113,126,745.39
  5. Step 5: Solve for x
    x = 113,126,745.39/12,357.78
  6. Step 6: Final answer
    x = 9,154.29

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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.