Home / 18,926.44-28,394.46-5,778.28

Finding the Fourth Proportional to 18,926.44, 28,394.46 and 5,778.28

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Solution

The fourth proportional to 18,926.44, 28,394.46 and 5,778.28 is: 8,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.44 : 28,394.46 = 5,778.28 : x
  2. Step 2: Convert to fraction form
    18,926.44/28,394.46 = 5,778.28/x
  3. Step 3: Cross multiply
    18,926.44x = 28,394.46 × 5,778.28
  4. Step 4: Simplify right side
    18,926.44x = 164,071,140.33
  5. Step 5: Solve for x
    x = 164,071,140.33/18,926.44
  6. Step 6: Final answer
    x = 8,668.89

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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.