Home / 8,716.36-13,121.97-7,941.34

Finding the Fourth Proportional to 8,716.36, 13,121.97 and 7,941.34

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Solution

The fourth proportional to 8,716.36, 13,121.97 and 7,941.34 is: 11,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.36 : 13,121.97 = 7,941.34 : x
  2. Step 2: Convert to fraction form
    8,716.36/13,121.97 = 7,941.34/x
  3. Step 3: Cross multiply
    8,716.36x = 13,121.97 × 7,941.34
  4. Step 4: Simplify right side
    8,716.36x = 104,206,011.86
  5. Step 5: Solve for x
    x = 104,206,011.86/8,716.36
  6. Step 6: Final answer
    x = 11,955.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.