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Finding the Fourth Proportional to 19,551, 26,980.38 and 10,719

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Solution

The fourth proportional to 19,551, 26,980.38 and 10,719 is: 14,792.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551 : 26,980.38 = 10,719 : x
  2. Step 2: Convert to fraction form
    19,551/26,980.38 = 10,719/x
  3. Step 3: Cross multiply
    19,551x = 26,980.38 × 10,719
  4. Step 4: Simplify right side
    19,551x = 289,202,693.22
  5. Step 5: Solve for x
    x = 289,202,693.22/19,551
  6. Step 6: Final answer
    x = 14,792.22

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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.