Home / 19,518.51-26,929.23-11,956.95

Finding the Fourth Proportional to 19,518.51, 26,929.23 and 11,956.95

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Solution

The fourth proportional to 19,518.51, 26,929.23 and 11,956.95 is: 16,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.51 : 26,929.23 = 11,956.95 : x
  2. Step 2: Convert to fraction form
    19,518.51/26,929.23 = 11,956.95/x
  3. Step 3: Cross multiply
    19,518.51x = 26,929.23 × 11,956.95
  4. Step 4: Simplify right side
    19,518.51x = 321,991,456.65
  5. Step 5: Solve for x
    x = 321,991,456.65/19,518.51
  6. Step 6: Final answer
    x = 16,496.72

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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.