Home / 7,816.62-10,786.59-4,279.98

Finding the Fourth Proportional to 7,816.62, 10,786.59 and 4,279.98

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Solution

The fourth proportional to 7,816.62, 10,786.59 and 4,279.98 is: 5,906.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.62 : 10,786.59 = 4,279.98 : x
  2. Step 2: Convert to fraction form
    7,816.62/10,786.59 = 4,279.98/x
  3. Step 3: Cross multiply
    7,816.62x = 10,786.59 × 4,279.98
  4. Step 4: Simplify right side
    7,816.62x = 46,166,389.47
  5. Step 5: Solve for x
    x = 46,166,389.47/7,816.62
  6. Step 6: Final answer
    x = 5,906.18

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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.