Home / 13,941.52-19,239.34-8,279.09

Finding the Fourth Proportional to 13,941.52, 19,239.34 and 8,279.09

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Solution

The fourth proportional to 13,941.52, 19,239.34 and 8,279.09 is: 11,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.52 : 19,239.34 = 8,279.09 : x
  2. Step 2: Convert to fraction form
    13,941.52/19,239.34 = 8,279.09/x
  3. Step 3: Cross multiply
    13,941.52x = 19,239.34 × 8,279.09
  4. Step 4: Simplify right side
    13,941.52x = 159,284,109.14
  5. Step 5: Solve for x
    x = 159,284,109.14/13,941.52
  6. Step 6: Final answer
    x = 11,425.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.