Home / 11,922.80-16,453.30-6,617.50

Finding the Fourth Proportional to 11,922.80, 16,453.30 and 6,617.50

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Solution

The fourth proportional to 11,922.80, 16,453.30 and 6,617.50 is: 9,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.80 : 16,453.30 = 6,617.50 : x
  2. Step 2: Convert to fraction form
    11,922.80/16,453.30 = 6,617.50/x
  3. Step 3: Cross multiply
    11,922.80x = 16,453.30 × 6,617.50
  4. Step 4: Simplify right side
    11,922.80x = 108,879,712.75
  5. Step 5: Solve for x
    x = 108,879,712.75/11,922.80
  6. Step 6: Final answer
    x = 9,132.06

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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.