Home / 11,381.21-17,080.58-7,431.39

Finding the Fourth Proportional to 11,381.21, 17,080.58 and 7,431.39

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Solution

The fourth proportional to 11,381.21, 17,080.58 and 7,431.39 is: 11,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.21 : 17,080.58 = 7,431.39 : x
  2. Step 2: Convert to fraction form
    11,381.21/17,080.58 = 7,431.39/x
  3. Step 3: Cross multiply
    11,381.21x = 17,080.58 × 7,431.39
  4. Step 4: Simplify right side
    11,381.21x = 126,932,442.12
  5. Step 5: Solve for x
    x = 126,932,442.12/11,381.21
  6. Step 6: Final answer
    x = 11,152.81

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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.