Home / 15,756.06-21,744.33-8,682.48

Finding the Fourth Proportional to 15,756.06, 21,744.33 and 8,682.48

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Solution

The fourth proportional to 15,756.06, 21,744.33 and 8,682.48 is: 11,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.06 : 21,744.33 = 8,682.48 : x
  2. Step 2: Convert to fraction form
    15,756.06/21,744.33 = 8,682.48/x
  3. Step 3: Cross multiply
    15,756.06x = 21,744.33 × 8,682.48
  4. Step 4: Simplify right side
    15,756.06x = 188,794,710.34
  5. Step 5: Solve for x
    x = 188,794,710.34/15,756.06
  6. Step 6: Final answer
    x = 11,982.36

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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.