Home / 18,364.37-27,546.57-5,215.05

Finding the Fourth Proportional to 18,364.37, 27,546.57 and 5,215.05

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Solution

The fourth proportional to 18,364.37, 27,546.57 and 5,215.05 is: 7,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.37 : 27,546.57 = 5,215.05 : x
  2. Step 2: Convert to fraction form
    18,364.37/27,546.57 = 5,215.05/x
  3. Step 3: Cross multiply
    18,364.37x = 27,546.57 × 5,215.05
  4. Step 4: Simplify right side
    18,364.37x = 143,656,739.88
  5. Step 5: Solve for x
    x = 143,656,739.88/18,364.37
  6. Step 6: Final answer
    x = 7,822.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.