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Finding the Fourth Proportional to 17,911.36, 26,867.68 and 6,815.96

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Solution

The fourth proportional to 17,911.36, 26,867.68 and 6,815.96 is: 10,224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.36 : 26,867.68 = 6,815.96 : x
  2. Step 2: Convert to fraction form
    17,911.36/26,867.68 = 6,815.96/x
  3. Step 3: Cross multiply
    17,911.36x = 26,867.68 × 6,815.96
  4. Step 4: Simplify right side
    17,911.36x = 183,129,032.17
  5. Step 5: Solve for x
    x = 183,129,032.17/17,911.36
  6. Step 6: Final answer
    x = 10,224.18

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1.5x scale

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.