Home / 11,872.36-17,807.58-2,987.56

Finding the Fourth Proportional to 11,872.36, 17,807.58 and 2,987.56

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Solution

The fourth proportional to 11,872.36, 17,807.58 and 2,987.56 is: 4,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.36 : 17,807.58 = 2,987.56 : x
  2. Step 2: Convert to fraction form
    11,872.36/17,807.58 = 2,987.56/x
  3. Step 3: Cross multiply
    11,872.36x = 17,807.58 × 2,987.56
  4. Step 4: Simplify right side
    11,872.36x = 53,201,213.70
  5. Step 5: Solve for x
    x = 53,201,213.70/11,872.36
  6. Step 6: Final answer
    x = 4,481.10

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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.