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Finding the Fourth Proportional to 17,428.68, 26,135.02 and 5,580.15

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Solution

The fourth proportional to 17,428.68, 26,135.02 and 5,580.15 is: 8,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,428.68 : 26,135.02 = 5,580.15 : x
  2. Step 2: Convert to fraction form
    17,428.68/26,135.02 = 5,580.15/x
  3. Step 3: Cross multiply
    17,428.68x = 26,135.02 × 5,580.15
  4. Step 4: Simplify right side
    17,428.68x = 145,837,331.85
  5. Step 5: Solve for x
    x = 145,837,331.85/17,428.68
  6. Step 6: Final answer
    x = 8,367.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.