Home / 11,705.54-17,556.95-2,939.78

Finding the Fourth Proportional to 11,705.54, 17,556.95 and 2,939.78

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Solution

The fourth proportional to 11,705.54, 17,556.95 and 2,939.78 is: 4,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.54 : 17,556.95 = 2,939.78 : x
  2. Step 2: Convert to fraction form
    11,705.54/17,556.95 = 2,939.78/x
  3. Step 3: Cross multiply
    11,705.54x = 17,556.95 × 2,939.78
  4. Step 4: Simplify right side
    11,705.54x = 51,613,621.71
  5. Step 5: Solve for x
    x = 51,613,621.71/11,705.54
  6. Step 6: Final answer
    x = 4,409.33

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1.5x scale

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.