Home / 8,763.42-13,145.13-2,189.60

Finding the Fourth Proportional to 8,763.42, 13,145.13 and 2,189.60

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Solution

The fourth proportional to 8,763.42, 13,145.13 and 2,189.60 is: 3,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.42 : 13,145.13 = 2,189.60 : x
  2. Step 2: Convert to fraction form
    8,763.42/13,145.13 = 2,189.60/x
  3. Step 3: Cross multiply
    8,763.42x = 13,145.13 × 2,189.60
  4. Step 4: Simplify right side
    8,763.42x = 28,782,510.92
  5. Step 5: Solve for x
    x = 28,782,510.92/8,763.42
  6. Step 6: Final answer
    x = 3,284.39

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Similar ratio
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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.