Home / 13,725.14-18,941.04-7,756.85

Finding the Fourth Proportional to 13,725.14, 18,941.04 and 7,756.85

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Solution

The fourth proportional to 13,725.14, 18,941.04 and 7,756.85 is: 10,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.14 : 18,941.04 = 7,756.85 : x
  2. Step 2: Convert to fraction form
    13,725.14/18,941.04 = 7,756.85/x
  3. Step 3: Cross multiply
    13,725.14x = 18,941.04 × 7,756.85
  4. Step 4: Simplify right side
    13,725.14x = 146,922,806.12
  5. Step 5: Solve for x
    x = 146,922,806.12/13,725.14
  6. Step 6: Final answer
    x = 10,704.65

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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.