Home / 15,425.24-21,286.69-8,710.75

Finding the Fourth Proportional to 15,425.24, 21,286.69 and 8,710.75

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Solution

The fourth proportional to 15,425.24, 21,286.69 and 8,710.75 is: 12,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.24 : 21,286.69 = 8,710.75 : x
  2. Step 2: Convert to fraction form
    15,425.24/21,286.69 = 8,710.75/x
  3. Step 3: Cross multiply
    15,425.24x = 21,286.69 × 8,710.75
  4. Step 4: Simplify right side
    15,425.24x = 185,422,959.92
  5. Step 5: Solve for x
    x = 185,422,959.92/15,425.24
  6. Step 6: Final answer
    x = 12,020.75

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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.