Home / 15,375.30-21,219.92-8,662.23

Finding the Fourth Proportional to 15,375.30, 21,219.92 and 8,662.23

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Solution

The fourth proportional to 15,375.30, 21,219.92 and 8,662.23 is: 11,955.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.30 : 21,219.92 = 8,662.23 : x
  2. Step 2: Convert to fraction form
    15,375.30/21,219.92 = 8,662.23/x
  3. Step 3: Cross multiply
    15,375.30x = 21,219.92 × 8,662.23
  4. Step 4: Simplify right side
    15,375.30x = 183,811,784.31
  5. Step 5: Solve for x
    x = 183,811,784.31/15,375.30
  6. Step 6: Final answer
    x = 11,955.00

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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.