Home / 15,919.67-21,962.33-9,940.96

Finding the Fourth Proportional to 15,919.67, 21,962.33 and 9,940.96

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Solution

The fourth proportional to 15,919.67, 21,962.33 and 9,940.96 is: 13,714.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.67 : 21,962.33 = 9,940.96 : x
  2. Step 2: Convert to fraction form
    15,919.67/21,962.33 = 9,940.96/x
  3. Step 3: Cross multiply
    15,919.67x = 21,962.33 × 9,940.96
  4. Step 4: Simplify right side
    15,919.67x = 218,326,576.70
  5. Step 5: Solve for x
    x = 218,326,576.70/15,919.67
  6. Step 6: Final answer
    x = 13,714.27

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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.