Home / 8,107.93-12,154.69-3,888.88

Finding the Fourth Proportional to 8,107.93, 12,154.69 and 3,888.88

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Solution

The fourth proportional to 8,107.93, 12,154.69 and 3,888.88 is: 5,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.93 : 12,154.69 = 3,888.88 : x
  2. Step 2: Convert to fraction form
    8,107.93/12,154.69 = 3,888.88/x
  3. Step 3: Cross multiply
    8,107.93x = 12,154.69 × 3,888.88
  4. Step 4: Simplify right side
    8,107.93x = 47,268,105.32
  5. Step 5: Solve for x
    x = 47,268,105.32/8,107.93
  6. Step 6: Final answer
    x = 5,829.86

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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.