Home / 18,929.51-26,121.67-11,374.44

Finding the Fourth Proportional to 18,929.51, 26,121.67 and 11,374.44

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Solution

The fourth proportional to 18,929.51, 26,121.67 and 11,374.44 is: 15,696.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.51 : 26,121.67 = 11,374.44 : x
  2. Step 2: Convert to fraction form
    18,929.51/26,121.67 = 11,374.44/x
  3. Step 3: Cross multiply
    18,929.51x = 26,121.67 × 11,374.44
  4. Step 4: Simplify right side
    18,929.51x = 297,119,241.72
  5. Step 5: Solve for x
    x = 297,119,241.72/18,929.51
  6. Step 6: Final answer
    x = 15,696.09

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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.