Home / 8,180.90-12,265.47-2,631.05

Finding the Fourth Proportional to 8,180.90, 12,265.47 and 2,631.05

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Solution

The fourth proportional to 8,180.90, 12,265.47 and 2,631.05 is: 3,944.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.90 : 12,265.47 = 2,631.05 : x
  2. Step 2: Convert to fraction form
    8,180.90/12,265.47 = 2,631.05/x
  3. Step 3: Cross multiply
    8,180.90x = 12,265.47 × 2,631.05
  4. Step 4: Simplify right side
    8,180.90x = 32,271,003.52
  5. Step 5: Solve for x
    x = 32,271,003.52/8,180.90
  6. Step 6: Final answer
    x = 3,944.68

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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.