Home / 8,190.62-12,290.76-4,492.16

Finding the Fourth Proportional to 8,190.62, 12,290.76 and 4,492.16

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Solution

The fourth proportional to 8,190.62, 12,290.76 and 4,492.16 is: 6,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.62 : 12,290.76 = 4,492.16 : x
  2. Step 2: Convert to fraction form
    8,190.62/12,290.76 = 4,492.16/x
  3. Step 3: Cross multiply
    8,190.62x = 12,290.76 × 4,492.16
  4. Step 4: Simplify right side
    8,190.62x = 55,212,060.44
  5. Step 5: Solve for x
    x = 55,212,060.44/8,190.62
  6. Step 6: Final answer
    x = 6,740.89

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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.