Home / 12,556.82-18,827.93-4,761.38

Finding the Fourth Proportional to 12,556.82, 18,827.93 and 4,761.38

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Solution

The fourth proportional to 12,556.82, 18,827.93 and 4,761.38 is: 7,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.82 : 18,827.93 = 4,761.38 : x
  2. Step 2: Convert to fraction form
    12,556.82/18,827.93 = 4,761.38/x
  3. Step 3: Cross multiply
    12,556.82x = 18,827.93 × 4,761.38
  4. Step 4: Simplify right side
    12,556.82x = 89,646,929.34
  5. Step 5: Solve for x
    x = 89,646,929.34/12,556.82
  6. Step 6: Final answer
    x = 7,139.30

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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.