Home / 19,279.76-28,921.77-6,129.06

Finding the Fourth Proportional to 19,279.76, 28,921.77 and 6,129.06

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Solution

The fourth proportional to 19,279.76, 28,921.77 and 6,129.06 is: 9,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.76 : 28,921.77 = 6,129.06 : x
  2. Step 2: Convert to fraction form
    19,279.76/28,921.77 = 6,129.06/x
  3. Step 3: Cross multiply
    19,279.76x = 28,921.77 × 6,129.06
  4. Step 4: Simplify right side
    19,279.76x = 177,263,263.64
  5. Step 5: Solve for x
    x = 177,263,263.64/19,279.76
  6. Step 6: Final answer
    x = 9,194.27

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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.