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Finding the Fourth Proportional to 8,253.64, 11,390.10 and 4,476.80

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Solution

The fourth proportional to 8,253.64, 11,390.10 and 4,476.80 is: 6,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.64 : 11,390.10 = 4,476.80 : x
  2. Step 2: Convert to fraction form
    8,253.64/11,390.10 = 4,476.80/x
  3. Step 3: Cross multiply
    8,253.64x = 11,390.10 × 4,476.80
  4. Step 4: Simplify right side
    8,253.64x = 50,991,199.68
  5. Step 5: Solve for x
    x = 50,991,199.68/8,253.64
  6. Step 6: Final answer
    x = 6,178.03

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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.