Home / 7,816.59-10,786.88-4,231.53

Finding the Fourth Proportional to 7,816.59, 10,786.88 and 4,231.53

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Solution

The fourth proportional to 7,816.59, 10,786.88 and 4,231.53 is: 5,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.59 : 10,786.88 = 4,231.53 : x
  2. Step 2: Convert to fraction form
    7,816.59/10,786.88 = 4,231.53/x
  3. Step 3: Cross multiply
    7,816.59x = 10,786.88 × 4,231.53
  4. Step 4: Simplify right side
    7,816.59x = 45,645,021.51
  5. Step 5: Solve for x
    x = 45,645,021.51/7,816.59
  6. Step 6: Final answer
    x = 5,839.51

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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.