Home / 18,776.98-28,161.88-5,629.33

Finding the Fourth Proportional to 18,776.98, 28,161.88 and 5,629.33

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Solution

The fourth proportional to 18,776.98, 28,161.88 and 5,629.33 is: 8,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.98 : 28,161.88 = 5,629.33 : x
  2. Step 2: Convert to fraction form
    18,776.98/28,161.88 = 5,629.33/x
  3. Step 3: Cross multiply
    18,776.98x = 28,161.88 × 5,629.33
  4. Step 4: Simplify right side
    18,776.98x = 158,532,537.07
  5. Step 5: Solve for x
    x = 158,532,537.07/18,776.98
  6. Step 6: Final answer
    x = 8,442.92

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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.