Home / 12,438.36-18,650.52-4,644

Finding the Fourth Proportional to 12,438.36, 18,650.52 and 4,644

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Solution

The fourth proportional to 12,438.36, 18,650.52 and 4,644 is: 6,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.36 : 18,650.52 = 4,644 : x
  2. Step 2: Convert to fraction form
    12,438.36/18,650.52 = 4,644/x
  3. Step 3: Cross multiply
    12,438.36x = 18,650.52 × 4,644
  4. Step 4: Simplify right side
    12,438.36x = 86,613,014.88
  5. Step 5: Solve for x
    x = 86,613,014.88/12,438.36
  6. Step 6: Final answer
    x = 6,963.38

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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.