Home / 15,119.73-20,831.18-11,336.96

Finding the Fourth Proportional to 15,119.73, 20,831.18 and 11,336.96

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Solution

The fourth proportional to 15,119.73, 20,831.18 and 11,336.96 is: 15,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,119.73 : 20,831.18 = 11,336.96 : x
  2. Step 2: Convert to fraction form
    15,119.73/20,831.18 = 11,336.96/x
  3. Step 3: Cross multiply
    15,119.73x = 20,831.18 × 11,336.96
  4. Step 4: Simplify right side
    15,119.73x = 236,162,249.81
  5. Step 5: Solve for x
    x = 236,162,249.81/15,119.73
  6. Step 6: Final answer
    x = 15,619.48

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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.