Home / 12,605.22-18,907.74-4,286.07

Finding the Fourth Proportional to 12,605.22, 18,907.74 and 4,286.07

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Solution

The fourth proportional to 12,605.22, 18,907.74 and 4,286.07 is: 6,429.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.22 : 18,907.74 = 4,286.07 : x
  2. Step 2: Convert to fraction form
    12,605.22/18,907.74 = 4,286.07/x
  3. Step 3: Cross multiply
    12,605.22x = 18,907.74 × 4,286.07
  4. Step 4: Simplify right side
    12,605.22x = 81,039,897.18
  5. Step 5: Solve for x
    x = 81,039,897.18/12,605.22
  6. Step 6: Final answer
    x = 6,429.07

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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.