Home / 8,458.26-12,684.60-2,911.47

Finding the Fourth Proportional to 8,458.26, 12,684.60 and 2,911.47

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Solution

The fourth proportional to 8,458.26, 12,684.60 and 2,911.47 is: 4,366.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.26 : 12,684.60 = 2,911.47 : x
  2. Step 2: Convert to fraction form
    8,458.26/12,684.60 = 2,911.47/x
  3. Step 3: Cross multiply
    8,458.26x = 12,684.60 × 2,911.47
  4. Step 4: Simplify right side
    8,458.26x = 36,930,832.36
  5. Step 5: Solve for x
    x = 36,930,832.36/8,458.26
  6. Step 6: Final answer
    x = 4,366.24

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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.