Home / 9,418.44-12,988.36-6,230.28

Finding the Fourth Proportional to 9,418.44, 12,988.36 and 6,230.28

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Solution

The fourth proportional to 9,418.44, 12,988.36 and 6,230.28 is: 8,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.44 : 12,988.36 = 6,230.28 : x
  2. Step 2: Convert to fraction form
    9,418.44/12,988.36 = 6,230.28/x
  3. Step 3: Cross multiply
    9,418.44x = 12,988.36 × 6,230.28
  4. Step 4: Simplify right side
    9,418.44x = 80,921,119.54
  5. Step 5: Solve for x
    x = 80,921,119.54/9,418.44
  6. Step 6: Final answer
    x = 8,591.78

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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.