Home / 12,918.83-19,370.96-4,481.38

Finding the Fourth Proportional to 12,918.83, 19,370.96 and 4,481.38

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Solution

The fourth proportional to 12,918.83, 19,370.96 and 4,481.38 is: 6,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.83 : 19,370.96 = 4,481.38 : x
  2. Step 2: Convert to fraction form
    12,918.83/19,370.96 = 4,481.38/x
  3. Step 3: Cross multiply
    12,918.83x = 19,370.96 × 4,481.38
  4. Step 4: Simplify right side
    12,918.83x = 86,808,632.72
  5. Step 5: Solve for x
    x = 86,808,632.72/12,918.83
  6. Step 6: Final answer
    x = 6,719.54

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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.