Home / 19,515.86-29,279.27-7,837.28

Finding the Fourth Proportional to 19,515.86, 29,279.27 and 7,837.28

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Solution

The fourth proportional to 19,515.86, 29,279.27 and 7,837.28 is: 11,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.86 : 29,279.27 = 7,837.28 : x
  2. Step 2: Convert to fraction form
    19,515.86/29,279.27 = 7,837.28/x
  3. Step 3: Cross multiply
    19,515.86x = 29,279.27 × 7,837.28
  4. Step 4: Simplify right side
    19,515.86x = 229,469,837.19
  5. Step 5: Solve for x
    x = 229,469,837.19/19,515.86
  6. Step 6: Final answer
    x = 11,758.12

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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.