Home / 12,107.04-16,707.32-6,729.45

Finding the Fourth Proportional to 12,107.04, 16,707.32 and 6,729.45

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Solution

The fourth proportional to 12,107.04, 16,707.32 and 6,729.45 is: 9,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.04 : 16,707.32 = 6,729.45 : x
  2. Step 2: Convert to fraction form
    12,107.04/16,707.32 = 6,729.45/x
  3. Step 3: Cross multiply
    12,107.04x = 16,707.32 × 6,729.45
  4. Step 4: Simplify right side
    12,107.04x = 112,431,074.57
  5. Step 5: Solve for x
    x = 112,431,074.57/12,107.04
  6. Step 6: Final answer
    x = 9,286.42

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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.