Home / 8,005.23-12,002.72-3,328.47

Finding the Fourth Proportional to 8,005.23, 12,002.72 and 3,328.47

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Solution

The fourth proportional to 8,005.23, 12,002.72 and 3,328.47 is: 4,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.23 : 12,002.72 = 3,328.47 : x
  2. Step 2: Convert to fraction form
    8,005.23/12,002.72 = 3,328.47/x
  3. Step 3: Cross multiply
    8,005.23x = 12,002.72 × 3,328.47
  4. Step 4: Simplify right side
    8,005.23x = 39,950,676.80
  5. Step 5: Solve for x
    x = 39,950,676.80/8,005.23
  6. Step 6: Final answer
    x = 4,990.57

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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.