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Finding the Fourth Proportional to 17,266.40, 25,899.60 and 7,412.78

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Solution

The fourth proportional to 17,266.40, 25,899.60 and 7,412.78 is: 11,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,266.40 : 25,899.60 = 7,412.78 : x
  2. Step 2: Convert to fraction form
    17,266.40/25,899.60 = 7,412.78/x
  3. Step 3: Cross multiply
    17,266.40x = 25,899.60 × 7,412.78
  4. Step 4: Simplify right side
    17,266.40x = 191,988,036.89
  5. Step 5: Solve for x
    x = 191,988,036.89/17,266.40
  6. Step 6: Final answer
    x = 11,119.17

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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.