Home / 8,763.56-13,145.37-2,189.75

Finding the Fourth Proportional to 8,763.56, 13,145.37 and 2,189.75

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Solution

The fourth proportional to 8,763.56, 13,145.37 and 2,189.75 is: 3,284.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.56 : 13,145.37 = 2,189.75 : x
  2. Step 2: Convert to fraction form
    8,763.56/13,145.37 = 2,189.75/x
  3. Step 3: Cross multiply
    8,763.56x = 13,145.37 × 2,189.75
  4. Step 4: Simplify right side
    8,763.56x = 28,785,065.74
  5. Step 5: Solve for x
    x = 28,785,065.74/8,763.56
  6. Step 6: Final answer
    x = 3,284.63

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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.