Home / 8,629.23-12,945.87-2,785.62

Finding the Fourth Proportional to 8,629.23, 12,945.87 and 2,785.62

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Solution

The fourth proportional to 8,629.23, 12,945.87 and 2,785.62 is: 4,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.23 : 12,945.87 = 2,785.62 : x
  2. Step 2: Convert to fraction form
    8,629.23/12,945.87 = 2,785.62/x
  3. Step 3: Cross multiply
    8,629.23x = 12,945.87 × 2,785.62
  4. Step 4: Simplify right side
    8,629.23x = 36,062,274.39
  5. Step 5: Solve for x
    x = 36,062,274.39/8,629.23
  6. Step 6: Final answer
    x = 4,179.08

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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.