Home / 7,816.12-10,786.50-4,279.24

Finding the Fourth Proportional to 7,816.12, 10,786.50 and 4,279.24

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Solution

The fourth proportional to 7,816.12, 10,786.50 and 4,279.24 is: 5,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.12 : 10,786.50 = 4,279.24 : x
  2. Step 2: Convert to fraction form
    7,816.12/10,786.50 = 4,279.24/x
  3. Step 3: Cross multiply
    7,816.12x = 10,786.50 × 4,279.24
  4. Step 4: Simplify right side
    7,816.12x = 46,158,022.26
  5. Step 5: Solve for x
    x = 46,158,022.26/7,816.12
  6. Step 6: Final answer
    x = 5,905.49

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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.