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Finding the Fourth Proportional to 17,875.44, 26,810 and 4,728

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Solution

The fourth proportional to 17,875.44, 26,810 and 4,728 is: 7,091.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,875.44 : 26,810 = 4,728 : x
  2. Step 2: Convert to fraction form
    17,875.44/26,810 = 4,728/x
  3. Step 3: Cross multiply
    17,875.44x = 26,810 × 4,728
  4. Step 4: Simplify right side
    17,875.44x = 126,757,680
  5. Step 5: Solve for x
    x = 126,757,680/17,875.44
  6. Step 6: Final answer
    x = 7,091.16

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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.