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Finding the Fourth Proportional to 8,479.58, 12,719.93 and 2,933.46

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Solution

The fourth proportional to 8,479.58, 12,719.93 and 2,933.46 is: 4,400.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.58 : 12,719.93 = 2,933.46 : x
  2. Step 2: Convert to fraction form
    8,479.58/12,719.93 = 2,933.46/x
  3. Step 3: Cross multiply
    8,479.58x = 12,719.93 × 2,933.46
  4. Step 4: Simplify right side
    8,479.58x = 37,313,405.86
  5. Step 5: Solve for x
    x = 37,313,405.86/8,479.58
  6. Step 6: Final answer
    x = 4,400.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.