Home / 12,182.02-16,822.80-11,518.62

Finding the Fourth Proportional to 12,182.02, 16,822.80 and 11,518.62

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Solution

The fourth proportional to 12,182.02, 16,822.80 and 11,518.62 is: 15,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.02 : 16,822.80 = 11,518.62 : x
  2. Step 2: Convert to fraction form
    12,182.02/16,822.80 = 11,518.62/x
  3. Step 3: Cross multiply
    12,182.02x = 16,822.80 × 11,518.62
  4. Step 4: Simplify right side
    12,182.02x = 193,775,440.54
  5. Step 5: Solve for x
    x = 193,775,440.54/12,182.02
  6. Step 6: Final answer
    x = 15,906.68

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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.