Home / 19,173.45-26,481.53-12,788.96

Finding the Fourth Proportional to 19,173.45, 26,481.53 and 12,788.96

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Solution

The fourth proportional to 19,173.45, 26,481.53 and 12,788.96 is: 17,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.45 : 26,481.53 = 12,788.96 : x
  2. Step 2: Convert to fraction form
    19,173.45/26,481.53 = 12,788.96/x
  3. Step 3: Cross multiply
    19,173.45x = 26,481.53 × 12,788.96
  4. Step 4: Simplify right side
    19,173.45x = 338,671,031.56
  5. Step 5: Solve for x
    x = 338,671,031.56/19,173.45
  6. Step 6: Final answer
    x = 17,663.54

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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.