Home / 8,205.47-11,327.40-6,189.71

Finding the Fourth Proportional to 8,205.47, 11,327.40 and 6,189.71

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Solution

The fourth proportional to 8,205.47, 11,327.40 and 6,189.71 is: 8,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.47 : 11,327.40 = 6,189.71 : x
  2. Step 2: Convert to fraction form
    8,205.47/11,327.40 = 6,189.71/x
  3. Step 3: Cross multiply
    8,205.47x = 11,327.40 × 6,189.71
  4. Step 4: Simplify right side
    8,205.47x = 70,113,321.05
  5. Step 5: Solve for x
    x = 70,113,321.05/8,205.47
  6. Step 6: Final answer
    x = 8,544.71

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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.