Home / 11,118.32-16,680.36-4,192.88

Finding the Fourth Proportional to 11,118.32, 16,680.36 and 4,192.88

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Solution

The fourth proportional to 11,118.32, 16,680.36 and 4,192.88 is: 6,290.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.32 : 16,680.36 = 4,192.88 : x
  2. Step 2: Convert to fraction form
    11,118.32/16,680.36 = 4,192.88/x
  3. Step 3: Cross multiply
    11,118.32x = 16,680.36 × 4,192.88
  4. Step 4: Simplify right side
    11,118.32x = 69,938,747.84
  5. Step 5: Solve for x
    x = 69,938,747.84/11,118.32
  6. Step 6: Final answer
    x = 6,290.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.