Home / 8,554.24-12,821.62-3,620.80

Finding the Fourth Proportional to 8,554.24, 12,821.62 and 3,620.80

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Solution

The fourth proportional to 8,554.24, 12,821.62 and 3,620.80 is: 5,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.24 : 12,821.62 = 3,620.80 : x
  2. Step 2: Convert to fraction form
    8,554.24/12,821.62 = 3,620.80/x
  3. Step 3: Cross multiply
    8,554.24x = 12,821.62 × 3,620.80
  4. Step 4: Simplify right side
    8,554.24x = 46,424,521.70
  5. Step 5: Solve for x
    x = 46,424,521.70/8,554.24
  6. Step 6: Final answer
    x = 5,427.08

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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.