Home / 19,450.40-26,831.69-11,378.77

Finding the Fourth Proportional to 19,450.40, 26,831.69 and 11,378.77

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Solution

The fourth proportional to 19,450.40, 26,831.69 and 11,378.77 is: 15,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,450.40 : 26,831.69 = 11,378.77 : x
  2. Step 2: Convert to fraction form
    19,450.40/26,831.69 = 11,378.77/x
  3. Step 3: Cross multiply
    19,450.40x = 26,831.69 × 11,378.77
  4. Step 4: Simplify right side
    19,450.40x = 305,311,505.25
  5. Step 5: Solve for x
    x = 305,311,505.25/19,450.40
  6. Step 6: Final answer
    x = 15,696.93

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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.