Home / 15,712.14-21,682.59-11,696.92

Finding the Fourth Proportional to 15,712.14, 21,682.59 and 11,696.92

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Solution

The fourth proportional to 15,712.14, 21,682.59 and 11,696.92 is: 16,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712.14 : 21,682.59 = 11,696.92 : x
  2. Step 2: Convert to fraction form
    15,712.14/21,682.59 = 11,696.92/x
  3. Step 3: Cross multiply
    15,712.14x = 21,682.59 × 11,696.92
  4. Step 4: Simplify right side
    15,712.14x = 253,619,520.62
  5. Step 5: Solve for x
    x = 253,619,520.62/15,712.14
  6. Step 6: Final answer
    x = 16,141.63

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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.