Home / 10,660.30-15,992.38-3,639.95

Finding the Fourth Proportional to 10,660.30, 15,992.38 and 3,639.95

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Solution

The fourth proportional to 10,660.30, 15,992.38 and 3,639.95 is: 5,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.30 : 15,992.38 = 3,639.95 : x
  2. Step 2: Convert to fraction form
    10,660.30/15,992.38 = 3,639.95/x
  3. Step 3: Cross multiply
    10,660.30x = 15,992.38 × 3,639.95
  4. Step 4: Simplify right side
    10,660.30x = 58,211,448.14
  5. Step 5: Solve for x
    x = 58,211,448.14/10,660.30
  6. Step 6: Final answer
    x = 5,460.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.