Home / 12,146.36-18,220.19-3,827.02

Finding the Fourth Proportional to 12,146.36, 18,220.19 and 3,827.02

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Solution

The fourth proportional to 12,146.36, 18,220.19 and 3,827.02 is: 5,740.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.36 : 18,220.19 = 3,827.02 : x
  2. Step 2: Convert to fraction form
    12,146.36/18,220.19 = 3,827.02/x
  3. Step 3: Cross multiply
    12,146.36x = 18,220.19 × 3,827.02
  4. Step 4: Simplify right side
    12,146.36x = 69,729,031.53
  5. Step 5: Solve for x
    x = 69,729,031.53/12,146.36
  6. Step 6: Final answer
    x = 5,740.73

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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.