Home / 15,766.63-21,757.89-8,693.44

Finding the Fourth Proportional to 15,766.63, 21,757.89 and 8,693.44

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Solution

The fourth proportional to 15,766.63, 21,757.89 and 8,693.44 is: 11,996.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.63 : 21,757.89 = 8,693.44 : x
  2. Step 2: Convert to fraction form
    15,766.63/21,757.89 = 8,693.44/x
  3. Step 3: Cross multiply
    15,766.63x = 21,757.89 × 8,693.44
  4. Step 4: Simplify right side
    15,766.63x = 189,150,911.24
  5. Step 5: Solve for x
    x = 189,150,911.24/15,766.63
  6. Step 6: Final answer
    x = 11,996.91

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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.