Home / 15,816.34-21,825.48-8,741.80

Finding the Fourth Proportional to 15,816.34, 21,825.48 and 8,741.80

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Solution

The fourth proportional to 15,816.34, 21,825.48 and 8,741.80 is: 12,063.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.34 : 21,825.48 = 8,741.80 : x
  2. Step 2: Convert to fraction form
    15,816.34/21,825.48 = 8,741.80/x
  3. Step 3: Cross multiply
    15,816.34x = 21,825.48 × 8,741.80
  4. Step 4: Simplify right side
    15,816.34x = 190,793,981.06
  5. Step 5: Solve for x
    x = 190,793,981.06/15,816.34
  6. Step 6: Final answer
    x = 12,063.09

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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.