Home / 11,965.56-17,948.34-4,172.28

Finding the Fourth Proportional to 11,965.56, 17,948.34 and 4,172.28

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Solution

The fourth proportional to 11,965.56, 17,948.34 and 4,172.28 is: 6,258.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.56 : 17,948.34 = 4,172.28 : x
  2. Step 2: Convert to fraction form
    11,965.56/17,948.34 = 4,172.28/x
  3. Step 3: Cross multiply
    11,965.56x = 17,948.34 × 4,172.28
  4. Step 4: Simplify right side
    11,965.56x = 74,885,500.02
  5. Step 5: Solve for x
    x = 74,885,500.02/11,965.56
  6. Step 6: Final answer
    x = 6,258.42

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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.