Home / 14,919.45-20,589.30-8,205.77

Finding the Fourth Proportional to 14,919.45, 20,589.30 and 8,205.77

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Solution

The fourth proportional to 14,919.45, 20,589.30 and 8,205.77 is: 11,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.45 : 20,589.30 = 8,205.77 : x
  2. Step 2: Convert to fraction form
    14,919.45/20,589.30 = 8,205.77/x
  3. Step 3: Cross multiply
    14,919.45x = 20,589.30 × 8,205.77
  4. Step 4: Simplify right side
    14,919.45x = 168,950,957.31
  5. Step 5: Solve for x
    x = 168,950,957.31/14,919.45
  6. Step 6: Final answer
    x = 11,324.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.