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Finding the Fourth Proportional to 6,257.66, 8,618.04 and 6,121.58

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Solution

The fourth proportional to 6,257.66, 8,618.04 and 6,121.58 is: 8,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,257.66 : 8,618.04 = 6,121.58 : x
  2. Step 2: Convert to fraction form
    6,257.66/8,618.04 = 6,121.58/x
  3. Step 3: Cross multiply
    6,257.66x = 8,618.04 × 6,121.58
  4. Step 4: Simplify right side
    6,257.66x = 52,756,021.30
  5. Step 5: Solve for x
    x = 52,756,021.30/6,257.66
  6. Step 6: Final answer
    x = 8,430.63

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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.