Home / 12,450.88-17,175.54-7,969.81

Finding the Fourth Proportional to 12,450.88, 17,175.54 and 7,969.81

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Solution

The fourth proportional to 12,450.88, 17,175.54 and 7,969.81 is: 10,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.88 : 17,175.54 = 7,969.81 : x
  2. Step 2: Convert to fraction form
    12,450.88/17,175.54 = 7,969.81/x
  3. Step 3: Cross multiply
    12,450.88x = 17,175.54 × 7,969.81
  4. Step 4: Simplify right side
    12,450.88x = 136,885,790.45
  5. Step 5: Solve for x
    x = 136,885,790.45/12,450.88
  6. Step 6: Final answer
    x = 10,994.07

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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.