Home / 11,445.72-17,076.39-10,198.20

Finding the Fourth Proportional to 11,445.72, 17,076.39 and 10,198.20

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Solution

The fourth proportional to 11,445.72, 17,076.39 and 10,198.20 is: 15,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.72 : 17,076.39 = 10,198.20 : x
  2. Step 2: Convert to fraction form
    11,445.72/17,076.39 = 10,198.20/x
  3. Step 3: Cross multiply
    11,445.72x = 17,076.39 × 10,198.20
  4. Step 4: Simplify right side
    11,445.72x = 174,148,440.50
  5. Step 5: Solve for x
    x = 174,148,440.50/11,445.72
  6. Step 6: Final answer
    x = 15,215.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.