Home / 12,276.41-18,409.14-4,479.75

Finding the Fourth Proportional to 12,276.41, 18,409.14 and 4,479.75

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Solution

The fourth proportional to 12,276.41, 18,409.14 and 4,479.75 is: 6,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.41 : 18,409.14 = 4,479.75 : x
  2. Step 2: Convert to fraction form
    12,276.41/18,409.14 = 4,479.75/x
  3. Step 3: Cross multiply
    12,276.41x = 18,409.14 × 4,479.75
  4. Step 4: Simplify right side
    12,276.41x = 82,468,344.92
  5. Step 5: Solve for x
    x = 82,468,344.92/12,276.41
  6. Step 6: Final answer
    x = 6,717.63

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1.5x scale

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.