Home / 11,021.72-16,555.19-7,279.01

Finding the Fourth Proportional to 11,021.72, 16,555.19 and 7,279.01

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Solution

The fourth proportional to 11,021.72, 16,555.19 and 7,279.01 is: 10,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.72 : 16,555.19 = 7,279.01 : x
  2. Step 2: Convert to fraction form
    11,021.72/16,555.19 = 7,279.01/x
  3. Step 3: Cross multiply
    11,021.72x = 16,555.19 × 7,279.01
  4. Step 4: Simplify right side
    11,021.72x = 120,505,429.60
  5. Step 5: Solve for x
    x = 120,505,429.60/11,021.72
  6. Step 6: Final answer
    x = 10,933.45

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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.