Home / 10,556.30-15,837.62-3,161

Finding the Fourth Proportional to 10,556.30, 15,837.62 and 3,161

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Solution

The fourth proportional to 10,556.30, 15,837.62 and 3,161 is: 4,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.30 : 15,837.62 = 3,161 : x
  2. Step 2: Convert to fraction form
    10,556.30/15,837.62 = 3,161/x
  3. Step 3: Cross multiply
    10,556.30x = 15,837.62 × 3,161
  4. Step 4: Simplify right side
    10,556.30x = 50,062,716.82
  5. Step 5: Solve for x
    x = 50,062,716.82/10,556.30
  6. Step 6: Final answer
    x = 4,742.45

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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.