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Finding the Fourth Proportional to 6,479.45, 8,889.10 and 6,165.71

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Solution

The fourth proportional to 6,479.45, 8,889.10 and 6,165.71 is: 8,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.45 : 8,889.10 = 6,165.71 : x
  2. Step 2: Convert to fraction form
    6,479.45/8,889.10 = 6,165.71/x
  3. Step 3: Cross multiply
    6,479.45x = 8,889.10 × 6,165.71
  4. Step 4: Simplify right side
    6,479.45x = 54,807,612.76
  5. Step 5: Solve for x
    x = 54,807,612.76/6,479.45
  6. Step 6: Final answer
    x = 8,458.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.