Home / 7,816.16-10,786.20-4,279.37

Finding the Fourth Proportional to 7,816.16, 10,786.20 and 4,279.37

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Solution

The fourth proportional to 7,816.16, 10,786.20 and 4,279.37 is: 5,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.16 : 10,786.20 = 4,279.37 : x
  2. Step 2: Convert to fraction form
    7,816.16/10,786.20 = 4,279.37/x
  3. Step 3: Cross multiply
    7,816.16x = 10,786.20 × 4,279.37
  4. Step 4: Simplify right side
    7,816.16x = 46,158,140.69
  5. Step 5: Solve for x
    x = 46,158,140.69/7,816.16
  6. Step 6: Final answer
    x = 5,905.48

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Half scale
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Double scale
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Similar ratio
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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.