Home / 13,058.20-19,579.20-7,508.80

Finding the Fourth Proportional to 13,058.20, 19,579.20 and 7,508.80

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Solution

The fourth proportional to 13,058.20, 19,579.20 and 7,508.80 is: 11,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.20 : 19,579.20 = 7,508.80 : x
  2. Step 2: Convert to fraction form
    13,058.20/19,579.20 = 7,508.80/x
  3. Step 3: Cross multiply
    13,058.20x = 19,579.20 × 7,508.80
  4. Step 4: Simplify right side
    13,058.20x = 147,016,296.96
  5. Step 5: Solve for x
    x = 147,016,296.96/13,058.20
  6. Step 6: Final answer
    x = 11,258.54

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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.