Home / 7,816.19-10,786.16-4,279.55

Finding the Fourth Proportional to 7,816.19, 10,786.16 and 4,279.55

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Solution

The fourth proportional to 7,816.19, 10,786.16 and 4,279.55 is: 5,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.19 : 10,786.16 = 4,279.55 : x
  2. Step 2: Convert to fraction form
    7,816.19/10,786.16 = 4,279.55/x
  3. Step 3: Cross multiply
    7,816.19x = 10,786.16 × 4,279.55
  4. Step 4: Simplify right side
    7,816.19x = 46,159,889.63
  5. Step 5: Solve for x
    x = 46,159,889.63/7,816.19
  6. Step 6: Final answer
    x = 5,905.68

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Half scale
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Double scale
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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.