Home / 8,539.27-12,801.09-2,989.59

Finding the Fourth Proportional to 8,539.27, 12,801.09 and 2,989.59

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Solution

The fourth proportional to 8,539.27, 12,801.09 and 2,989.59 is: 4,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.27 : 12,801.09 = 2,989.59 : x
  2. Step 2: Convert to fraction form
    8,539.27/12,801.09 = 2,989.59/x
  3. Step 3: Cross multiply
    8,539.27x = 12,801.09 × 2,989.59
  4. Step 4: Simplify right side
    8,539.27x = 38,269,931.70
  5. Step 5: Solve for x
    x = 38,269,931.70/8,539.27
  6. Step 6: Final answer
    x = 4,481.64

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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.