Home / 13,929.03-20,890.71-11,604.06

Finding the Fourth Proportional to 13,929.03, 20,890.71 and 11,604.06

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Solution

The fourth proportional to 13,929.03, 20,890.71 and 11,604.06 is: 17,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.03 : 20,890.71 = 11,604.06 : x
  2. Step 2: Convert to fraction form
    13,929.03/20,890.71 = 11,604.06/x
  3. Step 3: Cross multiply
    13,929.03x = 20,890.71 × 11,604.06
  4. Step 4: Simplify right side
    13,929.03x = 242,417,052.28
  5. Step 5: Solve for x
    x = 242,417,052.28/13,929.03
  6. Step 6: Final answer
    x = 17,403.73

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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.