Home / 18,112.21-27,165.20-4,785.35

Finding the Fourth Proportional to 18,112.21, 27,165.20 and 4,785.35

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Solution

The fourth proportional to 18,112.21, 27,165.20 and 4,785.35 is: 7,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.21 : 27,165.20 = 4,785.35 : x
  2. Step 2: Convert to fraction form
    18,112.21/27,165.20 = 4,785.35/x
  3. Step 3: Cross multiply
    18,112.21x = 27,165.20 × 4,785.35
  4. Step 4: Simplify right side
    18,112.21x = 129,994,907.92
  5. Step 5: Solve for x
    x = 129,994,907.92/18,112.21
  6. Step 6: Final answer
    x = 7,177.20

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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.