Home / 8,208.51-12,314.69-2,661.85

Finding the Fourth Proportional to 8,208.51, 12,314.69 and 2,661.85

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Solution

The fourth proportional to 8,208.51, 12,314.69 and 2,661.85 is: 3,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.51 : 12,314.69 = 2,661.85 : x
  2. Step 2: Convert to fraction form
    8,208.51/12,314.69 = 2,661.85/x
  3. Step 3: Cross multiply
    8,208.51x = 12,314.69 × 2,661.85
  4. Step 4: Simplify right side
    8,208.51x = 32,779,857.58
  5. Step 5: Solve for x
    x = 32,779,857.58/8,208.51
  6. Step 6: Final answer
    x = 3,993.40

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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.