Home / 11,431.03-17,148.59-4,039.78

Finding the Fourth Proportional to 11,431.03, 17,148.59 and 4,039.78

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Solution

The fourth proportional to 11,431.03, 17,148.59 and 4,039.78 is: 6,060.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.03 : 17,148.59 = 4,039.78 : x
  2. Step 2: Convert to fraction form
    11,431.03/17,148.59 = 4,039.78/x
  3. Step 3: Cross multiply
    11,431.03x = 17,148.59 × 4,039.78
  4. Step 4: Simplify right side
    11,431.03x = 69,276,541.01
  5. Step 5: Solve for x
    x = 69,276,541.01/11,431.03
  6. Step 6: Final answer
    x = 6,060.39

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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.