Home / 8,891.02-12,269.34-4,912.30

Finding the Fourth Proportional to 8,891.02, 12,269.34 and 4,912.30

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Solution

The fourth proportional to 8,891.02, 12,269.34 and 4,912.30 is: 6,778.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.02 : 12,269.34 = 4,912.30 : x
  2. Step 2: Convert to fraction form
    8,891.02/12,269.34 = 4,912.30/x
  3. Step 3: Cross multiply
    8,891.02x = 12,269.34 × 4,912.30
  4. Step 4: Simplify right side
    8,891.02x = 60,270,678.88
  5. Step 5: Solve for x
    x = 60,270,678.88/8,891.02
  6. Step 6: Final answer
    x = 6,778.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.