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Finding the Fourth Proportional to 8,410.65, 12,556.83 and 6,425.88

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Solution

The fourth proportional to 8,410.65, 12,556.83 and 6,425.88 is: 9,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,410.65 : 12,556.83 = 6,425.88 : x
  2. Step 2: Convert to fraction form
    8,410.65/12,556.83 = 6,425.88/x
  3. Step 3: Cross multiply
    8,410.65x = 12,556.83 × 6,425.88
  4. Step 4: Simplify right side
    8,410.65x = 80,688,682.76
  5. Step 5: Solve for x
    x = 80,688,682.76/8,410.65
  6. Step 6: Final answer
    x = 9,593.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.