Home / 13,831.74-19,087.74-7,863.36

Finding the Fourth Proportional to 13,831.74, 19,087.74 and 7,863.36

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Solution

The fourth proportional to 13,831.74, 19,087.74 and 7,863.36 is: 10,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.74 : 19,087.74 = 7,863.36 : x
  2. Step 2: Convert to fraction form
    13,831.74/19,087.74 = 7,863.36/x
  3. Step 3: Cross multiply
    13,831.74x = 19,087.74 × 7,863.36
  4. Step 4: Simplify right side
    13,831.74x = 150,093,771.21
  5. Step 5: Solve for x
    x = 150,093,771.21/13,831.74
  6. Step 6: Final answer
    x = 10,851.40

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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.