Home / 8,891.09-12,269.71-4,912.23

Finding the Fourth Proportional to 8,891.09, 12,269.71 and 4,912.23

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Solution

The fourth proportional to 8,891.09, 12,269.71 and 4,912.23 is: 6,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.09 : 12,269.71 = 4,912.23 : x
  2. Step 2: Convert to fraction form
    8,891.09/12,269.71 = 4,912.23/x
  3. Step 3: Cross multiply
    8,891.09x = 12,269.71 × 4,912.23
  4. Step 4: Simplify right side
    8,891.09x = 60,271,689.71
  5. Step 5: Solve for x
    x = 60,271,689.71/8,891.09
  6. Step 6: Final answer
    x = 6,778.89

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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.