Home / 8,382.45-12,573.27-3,117.45

Finding the Fourth Proportional to 8,382.45, 12,573.27 and 3,117.45

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Solution

The fourth proportional to 8,382.45, 12,573.27 and 3,117.45 is: 4,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,382.45 : 12,573.27 = 3,117.45 : x
  2. Step 2: Convert to fraction form
    8,382.45/12,573.27 = 3,117.45/x
  3. Step 3: Cross multiply
    8,382.45x = 12,573.27 × 3,117.45
  4. Step 4: Simplify right side
    8,382.45x = 39,196,540.56
  5. Step 5: Solve for x
    x = 39,196,540.56/8,382.45
  6. Step 6: Final answer
    x = 4,676.02

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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.