Home / 13,831.55-19,087.45-7,863.22

Finding the Fourth Proportional to 13,831.55, 19,087.45 and 7,863.22

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Solution

The fourth proportional to 13,831.55, 19,087.45 and 7,863.22 is: 10,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.55 : 19,087.45 = 7,863.22 : x
  2. Step 2: Convert to fraction form
    13,831.55/19,087.45 = 7,863.22/x
  3. Step 3: Cross multiply
    13,831.55x = 19,087.45 × 7,863.22
  4. Step 4: Simplify right side
    13,831.55x = 150,088,885.97
  5. Step 5: Solve for x
    x = 150,088,885.97/13,831.55
  6. Step 6: Final answer
    x = 10,851.20

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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.