Home / 12,177.81-18,260.24-3,855.60

Finding the Fourth Proportional to 12,177.81, 18,260.24 and 3,855.60

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Solution

The fourth proportional to 12,177.81, 18,260.24 and 3,855.60 is: 5,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.81 : 18,260.24 = 3,855.60 : x
  2. Step 2: Convert to fraction form
    12,177.81/18,260.24 = 3,855.60/x
  3. Step 3: Cross multiply
    12,177.81x = 18,260.24 × 3,855.60
  4. Step 4: Simplify right side
    12,177.81x = 70,404,162.07
  5. Step 5: Solve for x
    x = 70,404,162.07/12,177.81
  6. Step 6: Final answer
    x = 5,781.35

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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.