Home / 12,674.02-18,918.22-11,177.72

Finding the Fourth Proportional to 12,674.02, 18,918.22 and 11,177.72

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Solution

The fourth proportional to 12,674.02, 18,918.22 and 11,177.72 is: 16,684.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.02 : 18,918.22 = 11,177.72 : x
  2. Step 2: Convert to fraction form
    12,674.02/18,918.22 = 11,177.72/x
  3. Step 3: Cross multiply
    12,674.02x = 18,918.22 × 11,177.72
  4. Step 4: Simplify right side
    12,674.02x = 211,462,566.06
  5. Step 5: Solve for x
    x = 211,462,566.06/12,674.02
  6. Step 6: Final answer
    x = 16,684.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.