Home / 12,126.84-16,734.44-6,821.34

Finding the Fourth Proportional to 12,126.84, 16,734.44 and 6,821.34

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Solution

The fourth proportional to 12,126.84, 16,734.44 and 6,821.34 is: 9,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.84 : 16,734.44 = 6,821.34 : x
  2. Step 2: Convert to fraction form
    12,126.84/16,734.44 = 6,821.34/x
  3. Step 3: Cross multiply
    12,126.84x = 16,734.44 × 6,821.34
  4. Step 4: Simplify right side
    12,126.84x = 114,151,304.95
  5. Step 5: Solve for x
    x = 114,151,304.95/12,126.84
  6. Step 6: Final answer
    x = 9,413.11

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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.