Home / 11,103.80-16,647.48-6,720.32

Finding the Fourth Proportional to 11,103.80, 16,647.48 and 6,720.32

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Solution

The fourth proportional to 11,103.80, 16,647.48 and 6,720.32 is: 10,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.80 : 16,647.48 = 6,720.32 : x
  2. Step 2: Convert to fraction form
    11,103.80/16,647.48 = 6,720.32/x
  3. Step 3: Cross multiply
    11,103.80x = 16,647.48 × 6,720.32
  4. Step 4: Simplify right side
    11,103.80x = 111,876,392.79
  5. Step 5: Solve for x
    x = 111,876,392.79/11,103.80
  6. Step 6: Final answer
    x = 10,075.51

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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.