Home / 19,455-26,849.16-11,071.50

Finding the Fourth Proportional to 19,455, 26,849.16 and 11,071.50

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Solution

The fourth proportional to 19,455, 26,849.16 and 11,071.50 is: 15,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455 : 26,849.16 = 11,071.50 : x
  2. Step 2: Convert to fraction form
    19,455/26,849.16 = 11,071.50/x
  3. Step 3: Cross multiply
    19,455x = 26,849.16 × 11,071.50
  4. Step 4: Simplify right side
    19,455x = 297,260,474.94
  5. Step 5: Solve for x
    x = 297,260,474.94/19,455
  6. Step 6: Final answer
    x = 15,279.39

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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.