Home / 13,307.82-19,961.75-5,414.63

Finding the Fourth Proportional to 13,307.82, 19,961.75 and 5,414.63

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Solution

The fourth proportional to 13,307.82, 19,961.75 and 5,414.63 is: 8,121.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.82 : 19,961.75 = 5,414.63 : x
  2. Step 2: Convert to fraction form
    13,307.82/19,961.75 = 5,414.63/x
  3. Step 3: Cross multiply
    13,307.82x = 19,961.75 × 5,414.63
  4. Step 4: Simplify right side
    13,307.82x = 108,085,363.52
  5. Step 5: Solve for x
    x = 108,085,363.52/13,307.82
  6. Step 6: Final answer
    x = 8,121.94

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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.