Home / 8,379.19-12,568.60-4,218.08

Finding the Fourth Proportional to 8,379.19, 12,568.60 and 4,218.08

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Solution

The fourth proportional to 8,379.19, 12,568.60 and 4,218.08 is: 6,327.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.19 : 12,568.60 = 4,218.08 : x
  2. Step 2: Convert to fraction form
    8,379.19/12,568.60 = 4,218.08/x
  3. Step 3: Cross multiply
    8,379.19x = 12,568.60 × 4,218.08
  4. Step 4: Simplify right side
    8,379.19x = 53,015,409.79
  5. Step 5: Solve for x
    x = 53,015,409.79/8,379.19
  6. Step 6: Final answer
    x = 6,327.03

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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.