Home / 19,172.30-26,455.88-11,212.97

Finding the Fourth Proportional to 19,172.30, 26,455.88 and 11,212.97

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Solution

The fourth proportional to 19,172.30, 26,455.88 and 11,212.97 is: 15,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.30 : 26,455.88 = 11,212.97 : x
  2. Step 2: Convert to fraction form
    19,172.30/26,455.88 = 11,212.97/x
  3. Step 3: Cross multiply
    19,172.30x = 26,455.88 × 11,212.97
  4. Step 4: Simplify right side
    19,172.30x = 296,648,884.52
  5. Step 5: Solve for x
    x = 296,648,884.52/19,172.30
  6. Step 6: Final answer
    x = 15,472.79

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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.