Home / 13,727.62-18,943.92-7,759.10

Finding the Fourth Proportional to 13,727.62, 18,943.92 and 7,759.10

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Solution

The fourth proportional to 13,727.62, 18,943.92 and 7,759.10 is: 10,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.62 : 18,943.92 = 7,759.10 : x
  2. Step 2: Convert to fraction form
    13,727.62/18,943.92 = 7,759.10/x
  3. Step 3: Cross multiply
    13,727.62x = 18,943.92 × 7,759.10
  4. Step 4: Simplify right side
    13,727.62x = 146,987,769.67
  5. Step 5: Solve for x
    x = 146,987,769.67/13,727.62
  6. Step 6: Final answer
    x = 10,707.45

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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.