Home / 8,461.25-12,688.38-3,195.37

Finding the Fourth Proportional to 8,461.25, 12,688.38 and 3,195.37

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Solution

The fourth proportional to 8,461.25, 12,688.38 and 3,195.37 is: 4,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.25 : 12,688.38 = 3,195.37 : x
  2. Step 2: Convert to fraction form
    8,461.25/12,688.38 = 3,195.37/x
  3. Step 3: Cross multiply
    8,461.25x = 12,688.38 × 3,195.37
  4. Step 4: Simplify right side
    8,461.25x = 40,544,068.80
  5. Step 5: Solve for x
    x = 40,544,068.80/8,461.25
  6. Step 6: Final answer
    x = 4,791.74

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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.