Home / 12,203.02-16,843.35-7,728.94

Finding the Fourth Proportional to 12,203.02, 16,843.35 and 7,728.94

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Solution

The fourth proportional to 12,203.02, 16,843.35 and 7,728.94 is: 10,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.02 : 16,843.35 = 7,728.94 : x
  2. Step 2: Convert to fraction form
    12,203.02/16,843.35 = 7,728.94/x
  3. Step 3: Cross multiply
    12,203.02x = 16,843.35 × 7,728.94
  4. Step 4: Simplify right side
    12,203.02x = 130,181,241.55
  5. Step 5: Solve for x
    x = 130,181,241.55/12,203.02
  6. Step 6: Final answer
    x = 10,667.95

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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.