Home / 13,196.61-19,794.93-11,129.91

Finding the Fourth Proportional to 13,196.61, 19,794.93 and 11,129.91

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Solution

The fourth proportional to 13,196.61, 19,794.93 and 11,129.91 is: 16,694.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,196.61 : 19,794.93 = 11,129.91 : x
  2. Step 2: Convert to fraction form
    13,196.61/19,794.93 = 11,129.91/x
  3. Step 3: Cross multiply
    13,196.61x = 19,794.93 × 11,129.91
  4. Step 4: Simplify right side
    13,196.61x = 220,315,789.36
  5. Step 5: Solve for x
    x = 220,315,789.36/13,196.61
  6. Step 6: Final answer
    x = 16,694.88

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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.