Home / 19,486.35-26,890.79-10,989.27

Finding the Fourth Proportional to 19,486.35, 26,890.79 and 10,989.27

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Solution

The fourth proportional to 19,486.35, 26,890.79 and 10,989.27 is: 15,164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.35 : 26,890.79 = 10,989.27 : x
  2. Step 2: Convert to fraction form
    19,486.35/26,890.79 = 10,989.27/x
  3. Step 3: Cross multiply
    19,486.35x = 26,890.79 × 10,989.27
  4. Step 4: Simplify right side
    19,486.35x = 295,510,096.88
  5. Step 5: Solve for x
    x = 295,510,096.88/19,486.35
  6. Step 6: Final answer
    x = 15,164.98

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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.