Home / 18,518.94-27,781.14-5,369.60

Finding the Fourth Proportional to 18,518.94, 27,781.14 and 5,369.60

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Solution

The fourth proportional to 18,518.94, 27,781.14 and 5,369.60 is: 8,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.94 : 27,781.14 = 5,369.60 : x
  2. Step 2: Convert to fraction form
    18,518.94/27,781.14 = 5,369.60/x
  3. Step 3: Cross multiply
    18,518.94x = 27,781.14 × 5,369.60
  4. Step 4: Simplify right side
    18,518.94x = 149,173,582.50
  5. Step 5: Solve for x
    x = 149,173,582.50/18,518.94
  6. Step 6: Final answer
    x = 8,055.19

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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.