Home / 12,811.80-19,214.62-6,568.58

Finding the Fourth Proportional to 12,811.80, 19,214.62 and 6,568.58

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Solution

The fourth proportional to 12,811.80, 19,214.62 and 6,568.58 is: 9,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.80 : 19,214.62 = 6,568.58 : x
  2. Step 2: Convert to fraction form
    12,811.80/19,214.62 = 6,568.58/x
  3. Step 3: Cross multiply
    12,811.80x = 19,214.62 × 6,568.58
  4. Step 4: Simplify right side
    12,811.80x = 126,212,768.64
  5. Step 5: Solve for x
    x = 126,212,768.64/12,811.80
  6. Step 6: Final answer
    x = 9,851.29

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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.