Home / 14,919.24-20,589.06-8,205.36

Finding the Fourth Proportional to 14,919.24, 20,589.06 and 8,205.36

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Solution

The fourth proportional to 14,919.24, 20,589.06 and 8,205.36 is: 11,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.24 : 20,589.06 = 8,205.36 : x
  2. Step 2: Convert to fraction form
    14,919.24/20,589.06 = 8,205.36/x
  3. Step 3: Cross multiply
    14,919.24x = 20,589.06 × 8,205.36
  4. Step 4: Simplify right side
    14,919.24x = 168,940,649.36
  5. Step 5: Solve for x
    x = 168,940,649.36/14,919.24
  6. Step 6: Final answer
    x = 11,323.68

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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.