Home / 8,403.01-12,604.58-3,139.21

Finding the Fourth Proportional to 8,403.01, 12,604.58 and 3,139.21

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Solution

The fourth proportional to 8,403.01, 12,604.58 and 3,139.21 is: 4,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.01 : 12,604.58 = 3,139.21 : x
  2. Step 2: Convert to fraction form
    8,403.01/12,604.58 = 3,139.21/x
  3. Step 3: Cross multiply
    8,403.01x = 12,604.58 × 3,139.21
  4. Step 4: Simplify right side
    8,403.01x = 39,568,423.58
  5. Step 5: Solve for x
    x = 39,568,423.58/8,403.01
  6. Step 6: Final answer
    x = 4,708.84

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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.