Home / 12,103.73-18,144.66-8,407.70

Finding the Fourth Proportional to 12,103.73, 18,144.66 and 8,407.70

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Solution

The fourth proportional to 12,103.73, 18,144.66 and 8,407.70 is: 12,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103.73 : 18,144.66 = 8,407.70 : x
  2. Step 2: Convert to fraction form
    12,103.73/18,144.66 = 8,407.70/x
  3. Step 3: Cross multiply
    12,103.73x = 18,144.66 × 8,407.70
  4. Step 4: Simplify right side
    12,103.73x = 152,554,857.88
  5. Step 5: Solve for x
    x = 152,554,857.88/12,103.73
  6. Step 6: Final answer
    x = 12,603.95

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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.