Home / 13,177.96-19,764.08-4,172.78

Finding the Fourth Proportional to 13,177.96, 19,764.08 and 4,172.78

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Solution

The fourth proportional to 13,177.96, 19,764.08 and 4,172.78 is: 6,258.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.96 : 19,764.08 = 4,172.78 : x
  2. Step 2: Convert to fraction form
    13,177.96/19,764.08 = 4,172.78/x
  3. Step 3: Cross multiply
    13,177.96x = 19,764.08 × 4,172.78
  4. Step 4: Simplify right side
    13,177.96x = 82,471,157.74
  5. Step 5: Solve for x
    x = 82,471,157.74/13,177.96
  6. Step 6: Final answer
    x = 6,258.27

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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.