Home / 11,799.78-17,705.84-4,780.54

Finding the Fourth Proportional to 11,799.78, 17,705.84 and 4,780.54

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Solution

The fourth proportional to 11,799.78, 17,705.84 and 4,780.54 is: 7,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,799.78 : 17,705.84 = 4,780.54 : x
  2. Step 2: Convert to fraction form
    11,799.78/17,705.84 = 4,780.54/x
  3. Step 3: Cross multiply
    11,799.78x = 17,705.84 × 4,780.54
  4. Step 4: Simplify right side
    11,799.78x = 84,643,420.14
  5. Step 5: Solve for x
    x = 84,643,420.14/11,799.78
  6. Step 6: Final answer
    x = 7,173.31

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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.