Home / 12,845.85-17,735.63-11,499.12

Finding the Fourth Proportional to 12,845.85, 17,735.63 and 11,499.12

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Solution

The fourth proportional to 12,845.85, 17,735.63 and 11,499.12 is: 15,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.85 : 17,735.63 = 11,499.12 : x
  2. Step 2: Convert to fraction form
    12,845.85/17,735.63 = 11,499.12/x
  3. Step 3: Cross multiply
    12,845.85x = 17,735.63 × 11,499.12
  4. Step 4: Simplify right side
    12,845.85x = 203,944,080.15
  5. Step 5: Solve for x
    x = 203,944,080.15/12,845.85
  6. Step 6: Final answer
    x = 15,876.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.