Home / 12,161.31-18,246.72-4,764.48

Finding the Fourth Proportional to 12,161.31, 18,246.72 and 4,764.48

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Solution

The fourth proportional to 12,161.31, 18,246.72 and 4,764.48 is: 7,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.31 : 18,246.72 = 4,764.48 : x
  2. Step 2: Convert to fraction form
    12,161.31/18,246.72 = 4,764.48/x
  3. Step 3: Cross multiply
    12,161.31x = 18,246.72 × 4,764.48
  4. Step 4: Simplify right side
    12,161.31x = 86,936,132.51
  5. Step 5: Solve for x
    x = 86,936,132.51/12,161.31
  6. Step 6: Final answer
    x = 7,148.58

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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.