Home / 12,126.03-16,732.95-6,821.75

Finding the Fourth Proportional to 12,126.03, 16,732.95 and 6,821.75

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Solution

The fourth proportional to 12,126.03, 16,732.95 and 6,821.75 is: 9,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.03 : 16,732.95 = 6,821.75 : x
  2. Step 2: Convert to fraction form
    12,126.03/16,732.95 = 6,821.75/x
  3. Step 3: Cross multiply
    12,126.03x = 16,732.95 × 6,821.75
  4. Step 4: Simplify right side
    12,126.03x = 114,147,918.00
  5. Step 5: Solve for x
    x = 114,147,918.00/12,126.03
  6. Step 6: Final answer
    x = 9,413.46

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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.