Home / 8,812.72-13,199.60-6,476.80

Finding the Fourth Proportional to 8,812.72, 13,199.60 and 6,476.80

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Solution

The fourth proportional to 8,812.72, 13,199.60 and 6,476.80 is: 9,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.72 : 13,199.60 = 6,476.80 : x
  2. Step 2: Convert to fraction form
    8,812.72/13,199.60 = 6,476.80/x
  3. Step 3: Cross multiply
    8,812.72x = 13,199.60 × 6,476.80
  4. Step 4: Simplify right side
    8,812.72x = 85,491,169.28
  5. Step 5: Solve for x
    x = 85,491,169.28/8,812.72
  6. Step 6: Final answer
    x = 9,700.88

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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.