Home / 12,958.09-17,898.30-11,698.54

Finding the Fourth Proportional to 12,958.09, 17,898.30 and 11,698.54

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Solution

The fourth proportional to 12,958.09, 17,898.30 and 11,698.54 is: 16,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,958.09 : 17,898.30 = 11,698.54 : x
  2. Step 2: Convert to fraction form
    12,958.09/17,898.30 = 11,698.54/x
  3. Step 3: Cross multiply
    12,958.09x = 17,898.30 × 11,698.54
  4. Step 4: Simplify right side
    12,958.09x = 209,383,978.48
  5. Step 5: Solve for x
    x = 209,383,978.48/12,958.09
  6. Step 6: Final answer
    x = 16,158.55

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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.