Home / 15,418.40-21,277.32-8,344.76

Finding the Fourth Proportional to 15,418.40, 21,277.32 and 8,344.76

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Solution

The fourth proportional to 15,418.40, 21,277.32 and 8,344.76 is: 11,515.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.40 : 21,277.32 = 8,344.76 : x
  2. Step 2: Convert to fraction form
    15,418.40/21,277.32 = 8,344.76/x
  3. Step 3: Cross multiply
    15,418.40x = 21,277.32 × 8,344.76
  4. Step 4: Simplify right side
    15,418.40x = 177,554,128.84
  5. Step 5: Solve for x
    x = 177,554,128.84/15,418.40
  6. Step 6: Final answer
    x = 11,515.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.