Home / 8,116.07-12,179.58-3,185.13

Finding the Fourth Proportional to 8,116.07, 12,179.58 and 3,185.13

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Solution

The fourth proportional to 8,116.07, 12,179.58 and 3,185.13 is: 4,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.07 : 12,179.58 = 3,185.13 : x
  2. Step 2: Convert to fraction form
    8,116.07/12,179.58 = 3,185.13/x
  3. Step 3: Cross multiply
    8,116.07x = 12,179.58 × 3,185.13
  4. Step 4: Simplify right side
    8,116.07x = 38,793,565.50
  5. Step 5: Solve for x
    x = 38,793,565.50/8,116.07
  6. Step 6: Final answer
    x = 4,779.84

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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.