Home / 19,876.50-27,429.57-11,493.54

Finding the Fourth Proportional to 19,876.50, 27,429.57 and 11,493.54

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Solution

The fourth proportional to 19,876.50, 27,429.57 and 11,493.54 is: 15,861.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.50 : 27,429.57 = 11,493.54 : x
  2. Step 2: Convert to fraction form
    19,876.50/27,429.57 = 11,493.54/x
  3. Step 3: Cross multiply
    19,876.50x = 27,429.57 × 11,493.54
  4. Step 4: Simplify right side
    19,876.50x = 315,262,859.98
  5. Step 5: Solve for x
    x = 315,262,859.98/19,876.50
  6. Step 6: Final answer
    x = 15,861.09

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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.