Home / 13,243.67-19,958.54-11,929.07

Finding the Fourth Proportional to 13,243.67, 19,958.54 and 11,929.07

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Solution

The fourth proportional to 13,243.67, 19,958.54 and 11,929.07 is: 17,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.67 : 19,958.54 = 11,929.07 : x
  2. Step 2: Convert to fraction form
    13,243.67/19,958.54 = 11,929.07/x
  3. Step 3: Cross multiply
    13,243.67x = 19,958.54 × 11,929.07
  4. Step 4: Simplify right side
    13,243.67x = 238,086,811.01
  5. Step 5: Solve for x
    x = 238,086,811.01/13,243.67
  6. Step 6: Final answer
    x = 17,977.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.