Home / 12,619.06-18,831.37-11,083.30

Finding the Fourth Proportional to 12,619.06, 18,831.37 and 11,083.30

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Solution

The fourth proportional to 12,619.06, 18,831.37 and 11,083.30 is: 16,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.06 : 18,831.37 = 11,083.30 : x
  2. Step 2: Convert to fraction form
    12,619.06/18,831.37 = 11,083.30/x
  3. Step 3: Cross multiply
    12,619.06x = 18,831.37 × 11,083.30
  4. Step 4: Simplify right side
    12,619.06x = 208,713,723.12
  5. Step 5: Solve for x
    x = 208,713,723.12/12,619.06
  6. Step 6: Final answer
    x = 16,539.56

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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.