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Finding the Fourth Proportional to 12,303.38, 18,455.07 and 3,069.38

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Solution

The fourth proportional to 12,303.38, 18,455.07 and 3,069.38 is: 4,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.38 : 18,455.07 = 3,069.38 : x
  2. Step 2: Convert to fraction form
    12,303.38/18,455.07 = 3,069.38/x
  3. Step 3: Cross multiply
    12,303.38x = 18,455.07 × 3,069.38
  4. Step 4: Simplify right side
    12,303.38x = 56,645,515.13
  5. Step 5: Solve for x
    x = 56,645,515.13/12,303.38
  6. Step 6: Final answer
    x = 4,604.06

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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.