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Finding the Fourth Proportional to 8,533.65, 12,801.83 and 2,986.86

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Solution

The fourth proportional to 8,533.65, 12,801.83 and 2,986.86 is: 4,480.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,533.65 : 12,801.83 = 2,986.86 : x
  2. Step 2: Convert to fraction form
    8,533.65/12,801.83 = 2,986.86/x
  3. Step 3: Cross multiply
    8,533.65x = 12,801.83 × 2,986.86
  4. Step 4: Simplify right side
    8,533.65x = 38,237,273.95
  5. Step 5: Solve for x
    x = 38,237,273.95/8,533.65
  6. Step 6: Final answer
    x = 4,480.76

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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.