Home / 15,694.49-21,662.37-8,982.23

Finding the Fourth Proportional to 15,694.49, 21,662.37 and 8,982.23

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Solution

The fourth proportional to 15,694.49, 21,662.37 and 8,982.23 is: 12,397.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.49 : 21,662.37 = 8,982.23 : x
  2. Step 2: Convert to fraction form
    15,694.49/21,662.37 = 8,982.23/x
  3. Step 3: Cross multiply
    15,694.49x = 21,662.37 × 8,982.23
  4. Step 4: Simplify right side
    15,694.49x = 194,576,281.37
  5. Step 5: Solve for x
    x = 194,576,281.37/15,694.49
  6. Step 6: Final answer
    x = 12,397.74

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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.