Home / 11,447.78-17,150.13-8,975.09

Finding the Fourth Proportional to 11,447.78, 17,150.13 and 8,975.09

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Solution

The fourth proportional to 11,447.78, 17,150.13 and 8,975.09 is: 13,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.78 : 17,150.13 = 8,975.09 : x
  2. Step 2: Convert to fraction form
    11,447.78/17,150.13 = 8,975.09/x
  3. Step 3: Cross multiply
    11,447.78x = 17,150.13 × 8,975.09
  4. Step 4: Simplify right side
    11,447.78x = 153,924,003.14
  5. Step 5: Solve for x
    x = 153,924,003.14/11,447.78
  6. Step 6: Final answer
    x = 13,445.76

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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.