Home / 10,989.34-15,164.31-6,512.33

Finding the Fourth Proportional to 10,989.34, 15,164.31 and 6,512.33

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Solution

The fourth proportional to 10,989.34, 15,164.31 and 6,512.33 is: 8,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.34 : 15,164.31 = 6,512.33 : x
  2. Step 2: Convert to fraction form
    10,989.34/15,164.31 = 6,512.33/x
  3. Step 3: Cross multiply
    10,989.34x = 15,164.31 × 6,512.33
  4. Step 4: Simplify right side
    10,989.34x = 98,755,028.85
  5. Step 5: Solve for x
    x = 98,755,028.85/10,989.34
  6. Step 6: Final answer
    x = 8,986.44

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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.