Home / 12,743.67-19,114.82-3,977.58

Finding the Fourth Proportional to 12,743.67, 19,114.82 and 3,977.58

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Solution

The fourth proportional to 12,743.67, 19,114.82 and 3,977.58 is: 5,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.67 : 19,114.82 = 3,977.58 : x
  2. Step 2: Convert to fraction form
    12,743.67/19,114.82 = 3,977.58/x
  3. Step 3: Cross multiply
    12,743.67x = 19,114.82 × 3,977.58
  4. Step 4: Simplify right side
    12,743.67x = 76,030,725.74
  5. Step 5: Solve for x
    x = 76,030,725.74/12,743.67
  6. Step 6: Final answer
    x = 5,966.16

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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.