Home / 11,427.72-17,141.40-3,636.42

Finding the Fourth Proportional to 11,427.72, 17,141.40 and 3,636.42

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Solution

The fourth proportional to 11,427.72, 17,141.40 and 3,636.42 is: 5,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.72 : 17,141.40 = 3,636.42 : x
  2. Step 2: Convert to fraction form
    11,427.72/17,141.40 = 3,636.42/x
  3. Step 3: Cross multiply
    11,427.72x = 17,141.40 × 3,636.42
  4. Step 4: Simplify right side
    11,427.72x = 62,333,329.79
  5. Step 5: Solve for x
    x = 62,333,329.79/11,427.72
  6. Step 6: Final answer
    x = 5,454.57

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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.