Home / 8,090.38-12,135.53-3,160.52

Finding the Fourth Proportional to 8,090.38, 12,135.53 and 3,160.52

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Solution

The fourth proportional to 8,090.38, 12,135.53 and 3,160.52 is: 4,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.38 : 12,135.53 = 3,160.52 : x
  2. Step 2: Convert to fraction form
    8,090.38/12,135.53 = 3,160.52/x
  3. Step 3: Cross multiply
    8,090.38x = 12,135.53 × 3,160.52
  4. Step 4: Simplify right side
    8,090.38x = 38,354,585.28
  5. Step 5: Solve for x
    x = 38,354,585.28/8,090.38
  6. Step 6: Final answer
    x = 4,740.76

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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.