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Finding the Fourth Proportional to 17,376.76, 26,070 and 6,840.28

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Solution

The fourth proportional to 17,376.76, 26,070 and 6,840.28 is: 10,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.76 : 26,070 = 6,840.28 : x
  2. Step 2: Convert to fraction form
    17,376.76/26,070 = 6,840.28/x
  3. Step 3: Cross multiply
    17,376.76x = 26,070 × 6,840.28
  4. Step 4: Simplify right side
    17,376.76x = 178,326,099.60
  5. Step 5: Solve for x
    x = 178,326,099.60/17,376.76
  6. Step 6: Final answer
    x = 10,262.33

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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.