Home / 12,185.20-16,823.40-9,952.44

Finding the Fourth Proportional to 12,185.20, 16,823.40 and 9,952.44

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Solution

The fourth proportional to 12,185.20, 16,823.40 and 9,952.44 is: 13,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.20 : 16,823.40 = 9,952.44 : x
  2. Step 2: Convert to fraction form
    12,185.20/16,823.40 = 9,952.44/x
  3. Step 3: Cross multiply
    12,185.20x = 16,823.40 × 9,952.44
  4. Step 4: Simplify right side
    12,185.20x = 167,433,745.22
  5. Step 5: Solve for x
    x = 167,433,745.22/12,185.20
  6. Step 6: Final answer
    x = 13,740.75

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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.