Home / 18,415.08-27,622.44-12,173.58

Finding the Fourth Proportional to 18,415.08, 27,622.44 and 12,173.58

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Solution

The fourth proportional to 18,415.08, 27,622.44 and 12,173.58 is: 18,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.08 : 27,622.44 = 12,173.58 : x
  2. Step 2: Convert to fraction form
    18,415.08/27,622.44 = 12,173.58/x
  3. Step 3: Cross multiply
    18,415.08x = 27,622.44 × 12,173.58
  4. Step 4: Simplify right side
    18,415.08x = 336,263,983.14
  5. Step 5: Solve for x
    x = 336,263,983.14/18,415.08
  6. Step 6: Final answer
    x = 18,260.25

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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.