Home / 8,140.38-12,196.64-4,445.21

Finding the Fourth Proportional to 8,140.38, 12,196.64 and 4,445.21

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Solution

The fourth proportional to 8,140.38, 12,196.64 and 4,445.21 is: 6,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.38 : 12,196.64 = 4,445.21 : x
  2. Step 2: Convert to fraction form
    8,140.38/12,196.64 = 4,445.21/x
  3. Step 3: Cross multiply
    8,140.38x = 12,196.64 × 4,445.21
  4. Step 4: Simplify right side
    8,140.38x = 54,216,626.09
  5. Step 5: Solve for x
    x = 54,216,626.09/8,140.38
  6. Step 6: Final answer
    x = 6,660.21

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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.