Home / 13,727.22-18,943.37-7,758.69

Finding the Fourth Proportional to 13,727.22, 18,943.37 and 7,758.69

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Solution

The fourth proportional to 13,727.22, 18,943.37 and 7,758.69 is: 10,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.22 : 18,943.37 = 7,758.69 : x
  2. Step 2: Convert to fraction form
    13,727.22/18,943.37 = 7,758.69/x
  3. Step 3: Cross multiply
    13,727.22x = 18,943.37 × 7,758.69
  4. Step 4: Simplify right side
    13,727.22x = 146,975,654.65
  5. Step 5: Solve for x
    x = 146,975,654.65/13,727.22
  6. Step 6: Final answer
    x = 10,706.88

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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.