Home / 12,202.80-16,839.72-6,897.60

Finding the Fourth Proportional to 12,202.80, 16,839.72 and 6,897.60

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Solution

The fourth proportional to 12,202.80, 16,839.72 and 6,897.60 is: 9,518.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.80 : 16,839.72 = 6,897.60 : x
  2. Step 2: Convert to fraction form
    12,202.80/16,839.72 = 6,897.60/x
  3. Step 3: Cross multiply
    12,202.80x = 16,839.72 × 6,897.60
  4. Step 4: Simplify right side
    12,202.80x = 116,153,652.67
  5. Step 5: Solve for x
    x = 116,153,652.67/12,202.80
  6. Step 6: Final answer
    x = 9,518.61

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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.