Home / 12,549.42-18,825.77-3,785.22

Finding the Fourth Proportional to 12,549.42, 18,825.77 and 3,785.22

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Solution

The fourth proportional to 12,549.42, 18,825.77 and 3,785.22 is: 5,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.42 : 18,825.77 = 3,785.22 : x
  2. Step 2: Convert to fraction form
    12,549.42/18,825.77 = 3,785.22/x
  3. Step 3: Cross multiply
    12,549.42x = 18,825.77 × 3,785.22
  4. Step 4: Simplify right side
    12,549.42x = 71,259,662.19
  5. Step 5: Solve for x
    x = 71,259,662.19/12,549.42
  6. Step 6: Final answer
    x = 5,678.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.