Home / 15,727.47-21,704.97-8,653.89

Finding the Fourth Proportional to 15,727.47, 21,704.97 and 8,653.89

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Solution

The fourth proportional to 15,727.47, 21,704.97 and 8,653.89 is: 11,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.47 : 21,704.97 = 8,653.89 : x
  2. Step 2: Convert to fraction form
    15,727.47/21,704.97 = 8,653.89/x
  3. Step 3: Cross multiply
    15,727.47x = 21,704.97 × 8,653.89
  4. Step 4: Simplify right side
    15,727.47x = 187,832,422.83
  5. Step 5: Solve for x
    x = 187,832,422.83/15,727.47
  6. Step 6: Final answer
    x = 11,942.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.