Home / 8,763.89-13,145.76-2,190.03

Finding the Fourth Proportional to 8,763.89, 13,145.76 and 2,190.03

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Solution

The fourth proportional to 8,763.89, 13,145.76 and 2,190.03 is: 3,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.89 : 13,145.76 = 2,190.03 : x
  2. Step 2: Convert to fraction form
    8,763.89/13,145.76 = 2,190.03/x
  3. Step 3: Cross multiply
    8,763.89x = 13,145.76 × 2,190.03
  4. Step 4: Simplify right side
    8,763.89x = 28,789,608.77
  5. Step 5: Solve for x
    x = 28,789,608.77/8,763.89
  6. Step 6: Final answer
    x = 3,285.03

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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.