Home / 12,124.14-16,733.16-6,820.80

Finding the Fourth Proportional to 12,124.14, 16,733.16 and 6,820.80

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Solution

The fourth proportional to 12,124.14, 16,733.16 and 6,820.80 is: 9,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.14 : 16,733.16 = 6,820.80 : x
  2. Step 2: Convert to fraction form
    12,124.14/16,733.16 = 6,820.80/x
  3. Step 3: Cross multiply
    12,124.14x = 16,733.16 × 6,820.80
  4. Step 4: Simplify right side
    12,124.14x = 114,133,537.73
  5. Step 5: Solve for x
    x = 114,133,537.73/12,124.14
  6. Step 6: Final answer
    x = 9,413.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.