Home / 8,154.65-12,231.60-2,889.58

Finding the Fourth Proportional to 8,154.65, 12,231.60 and 2,889.58

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Solution

The fourth proportional to 8,154.65, 12,231.60 and 2,889.58 is: 4,334.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.65 : 12,231.60 = 2,889.58 : x
  2. Step 2: Convert to fraction form
    8,154.65/12,231.60 = 2,889.58/x
  3. Step 3: Cross multiply
    8,154.65x = 12,231.60 × 2,889.58
  4. Step 4: Simplify right side
    8,154.65x = 35,344,186.73
  5. Step 5: Solve for x
    x = 35,344,186.73/8,154.65
  6. Step 6: Final answer
    x = 4,334.24

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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.