Home / 12,176.68-18,257.97-4,772.47

Finding the Fourth Proportional to 12,176.68, 18,257.97 and 4,772.47

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Solution

The fourth proportional to 12,176.68, 18,257.97 and 4,772.47 is: 7,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.68 : 18,257.97 = 4,772.47 : x
  2. Step 2: Convert to fraction form
    12,176.68/18,257.97 = 4,772.47/x
  3. Step 3: Cross multiply
    12,176.68x = 18,257.97 × 4,772.47
  4. Step 4: Simplify right side
    12,176.68x = 87,135,614.09
  5. Step 5: Solve for x
    x = 87,135,614.09/12,176.68
  6. Step 6: Final answer
    x = 7,155.94

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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.