Home / 13,929.09-20,911.44-11,967.27

Finding the Fourth Proportional to 13,929.09, 20,911.44 and 11,967.27

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Solution

The fourth proportional to 13,929.09, 20,911.44 and 11,967.27 is: 17,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.09 : 20,911.44 = 11,967.27 : x
  2. Step 2: Convert to fraction form
    13,929.09/20,911.44 = 11,967.27/x
  3. Step 3: Cross multiply
    13,929.09x = 20,911.44 × 11,967.27
  4. Step 4: Simplify right side
    13,929.09x = 250,252,848.57
  5. Step 5: Solve for x
    x = 250,252,848.57/13,929.09
  6. Step 6: Final answer
    x = 17,966.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.