Home / 11,883.78-17,819.64-3,983.58

Finding the Fourth Proportional to 11,883.78, 17,819.64 and 3,983.58

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Solution

The fourth proportional to 11,883.78, 17,819.64 and 3,983.58 is: 5,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.78 : 17,819.64 = 3,983.58 : x
  2. Step 2: Convert to fraction form
    11,883.78/17,819.64 = 3,983.58/x
  3. Step 3: Cross multiply
    11,883.78x = 17,819.64 × 3,983.58
  4. Step 4: Simplify right side
    11,883.78x = 70,985,961.51
  5. Step 5: Solve for x
    x = 70,985,961.51/11,883.78
  6. Step 6: Final answer
    x = 5,973.35

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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.