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Finding the Fourth Proportional to 7,865.62, 10,843.70 and 6,277.62

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Solution

The fourth proportional to 7,865.62, 10,843.70 and 6,277.62 is: 8,654.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.62 : 10,843.70 = 6,277.62 : x
  2. Step 2: Convert to fraction form
    7,865.62/10,843.70 = 6,277.62/x
  3. Step 3: Cross multiply
    7,865.62x = 10,843.70 × 6,277.62
  4. Step 4: Simplify right side
    7,865.62x = 68,072,627.99
  5. Step 5: Solve for x
    x = 68,072,627.99/7,865.62
  6. Step 6: Final answer
    x = 8,654.45

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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.