Home / 18,518.44-27,780.39-5,369.10

Finding the Fourth Proportional to 18,518.44, 27,780.39 and 5,369.10

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Solution

The fourth proportional to 18,518.44, 27,780.39 and 5,369.10 is: 8,054.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.44 : 27,780.39 = 5,369.10 : x
  2. Step 2: Convert to fraction form
    18,518.44/27,780.39 = 5,369.10/x
  3. Step 3: Cross multiply
    18,518.44x = 27,780.39 × 5,369.10
  4. Step 4: Simplify right side
    18,518.44x = 149,155,665.10
  5. Step 5: Solve for x
    x = 149,155,665.10/18,518.44
  6. Step 6: Final answer
    x = 8,054.44

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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.