Home / 12,819.08-17,690.33-7,076.54

Finding the Fourth Proportional to 12,819.08, 17,690.33 and 7,076.54

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Solution

The fourth proportional to 12,819.08, 17,690.33 and 7,076.54 is: 9,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.08 : 17,690.33 = 7,076.54 : x
  2. Step 2: Convert to fraction form
    12,819.08/17,690.33 = 7,076.54/x
  3. Step 3: Cross multiply
    12,819.08x = 17,690.33 × 7,076.54
  4. Step 4: Simplify right side
    12,819.08x = 125,186,283.63
  5. Step 5: Solve for x
    x = 125,186,283.63/12,819.08
  6. Step 6: Final answer
    x = 9,765.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.