Home / 13,279.74-19,919.60-7,360.26

Finding the Fourth Proportional to 13,279.74, 19,919.60 and 7,360.26

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Solution

The fourth proportional to 13,279.74, 19,919.60 and 7,360.26 is: 11,040.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.74 : 19,919.60 = 7,360.26 : x
  2. Step 2: Convert to fraction form
    13,279.74/19,919.60 = 7,360.26/x
  3. Step 3: Cross multiply
    13,279.74x = 19,919.60 × 7,360.26
  4. Step 4: Simplify right side
    13,279.74x = 146,613,435.10
  5. Step 5: Solve for x
    x = 146,613,435.10/13,279.74
  6. Step 6: Final answer
    x = 11,040.38

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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.