Home / 7,816.27-10,786.36-4,231.15

Finding the Fourth Proportional to 7,816.27, 10,786.36 and 4,231.15

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Solution

The fourth proportional to 7,816.27, 10,786.36 and 4,231.15 is: 5,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.27 : 10,786.36 = 4,231.15 : x
  2. Step 2: Convert to fraction form
    7,816.27/10,786.36 = 4,231.15/x
  3. Step 3: Cross multiply
    7,816.27x = 10,786.36 × 4,231.15
  4. Step 4: Simplify right side
    7,816.27x = 45,638,707.11
  5. Step 5: Solve for x
    x = 45,638,707.11/7,816.27
  6. Step 6: Final answer
    x = 5,838.94

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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.