Home / 14,660.88-21,986.68-7,731.60

Finding the Fourth Proportional to 14,660.88, 21,986.68 and 7,731.60

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Solution

The fourth proportional to 14,660.88, 21,986.68 and 7,731.60 is: 11,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,660.88 : 21,986.68 = 7,731.60 : x
  2. Step 2: Convert to fraction form
    14,660.88/21,986.68 = 7,731.60/x
  3. Step 3: Cross multiply
    14,660.88x = 21,986.68 × 7,731.60
  4. Step 4: Simplify right side
    14,660.88x = 169,992,215.09
  5. Step 5: Solve for x
    x = 169,992,215.09/14,660.88
  6. Step 6: Final answer
    x = 11,594.95

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1.5x scale

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.