Home / 12,511.75-18,730.23-7,566.43

Finding the Fourth Proportional to 12,511.75, 18,730.23 and 7,566.43

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Solution

The fourth proportional to 12,511.75, 18,730.23 and 7,566.43 is: 11,327.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.75 : 18,730.23 = 7,566.43 : x
  2. Step 2: Convert to fraction form
    12,511.75/18,730.23 = 7,566.43/x
  3. Step 3: Cross multiply
    12,511.75x = 18,730.23 × 7,566.43
  4. Step 4: Simplify right side
    12,511.75x = 141,720,974.18
  5. Step 5: Solve for x
    x = 141,720,974.18/12,511.75
  6. Step 6: Final answer
    x = 11,327.03

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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.