Home / 12,845.56-19,269-3,612.28

Finding the Fourth Proportional to 12,845.56, 19,269 and 3,612.28

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Solution

The fourth proportional to 12,845.56, 19,269 and 3,612.28 is: 5,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.56 : 19,269 = 3,612.28 : x
  2. Step 2: Convert to fraction form
    12,845.56/19,269 = 3,612.28/x
  3. Step 3: Cross multiply
    12,845.56x = 19,269 × 3,612.28
  4. Step 4: Simplify right side
    12,845.56x = 69,605,023.32
  5. Step 5: Solve for x
    x = 69,605,023.32/12,845.56
  6. Step 6: Final answer
    x = 5,418.61

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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.