Home / 11,145.56-16,720.74-3,750.09

Finding the Fourth Proportional to 11,145.56, 16,720.74 and 3,750.09

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Solution

The fourth proportional to 11,145.56, 16,720.74 and 3,750.09 is: 5,625.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.56 : 16,720.74 = 3,750.09 : x
  2. Step 2: Convert to fraction form
    11,145.56/16,720.74 = 3,750.09/x
  3. Step 3: Cross multiply
    11,145.56x = 16,720.74 × 3,750.09
  4. Step 4: Simplify right side
    11,145.56x = 62,704,279.87
  5. Step 5: Solve for x
    x = 62,704,279.87/11,145.56
  6. Step 6: Final answer
    x = 5,625.94

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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.