Home / 11,103.85-16,647.53-6,720.26

Finding the Fourth Proportional to 11,103.85, 16,647.53 and 6,720.26

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Solution

The fourth proportional to 11,103.85, 16,647.53 and 6,720.26 is: 10,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.85 : 16,647.53 = 6,720.26 : x
  2. Step 2: Convert to fraction form
    11,103.85/16,647.53 = 6,720.26/x
  3. Step 3: Cross multiply
    11,103.85x = 16,647.53 × 6,720.26
  4. Step 4: Simplify right side
    11,103.85x = 111,875,729.96
  5. Step 5: Solve for x
    x = 111,875,729.96/11,103.85
  6. Step 6: Final answer
    x = 10,075.40

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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.