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Finding the Fourth Proportional to 8,242.68, 11,375.70 and 4,706.42

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Solution

The fourth proportional to 8,242.68, 11,375.70 and 4,706.42 is: 6,495.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242.68 : 11,375.70 = 4,706.42 : x
  2. Step 2: Convert to fraction form
    8,242.68/11,375.70 = 4,706.42/x
  3. Step 3: Cross multiply
    8,242.68x = 11,375.70 × 4,706.42
  4. Step 4: Simplify right side
    8,242.68x = 53,538,821.99
  5. Step 5: Solve for x
    x = 53,538,821.99/8,242.68
  6. Step 6: Final answer
    x = 6,495.32

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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.