Home / 11,814.78-16,289.20-9,682.44

Finding the Fourth Proportional to 11,814.78, 16,289.20 and 9,682.44

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Solution

The fourth proportional to 11,814.78, 16,289.20 and 9,682.44 is: 13,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.78 : 16,289.20 = 9,682.44 : x
  2. Step 2: Convert to fraction form
    11,814.78/16,289.20 = 9,682.44/x
  3. Step 3: Cross multiply
    11,814.78x = 16,289.20 × 9,682.44
  4. Step 4: Simplify right side
    11,814.78x = 157,719,201.65
  5. Step 5: Solve for x
    x = 157,719,201.65/11,814.78
  6. Step 6: Final answer
    x = 13,349.31

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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.