Home / 7,816.16-10,786.30-4,279.38

Finding the Fourth Proportional to 7,816.16, 10,786.30 and 4,279.38

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Solution

The fourth proportional to 7,816.16, 10,786.30 and 4,279.38 is: 5,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.16 : 10,786.30 = 4,279.38 : x
  2. Step 2: Convert to fraction form
    7,816.16/10,786.30 = 4,279.38/x
  3. Step 3: Cross multiply
    7,816.16x = 10,786.30 × 4,279.38
  4. Step 4: Simplify right side
    7,816.16x = 46,158,676.49
  5. Step 5: Solve for x
    x = 46,158,676.49/7,816.16
  6. Step 6: Final answer
    x = 5,905.54

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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.