Home / 8,130.10-12,194.87-3,447.09

Finding the Fourth Proportional to 8,130.10, 12,194.87 and 3,447.09

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Solution

The fourth proportional to 8,130.10, 12,194.87 and 3,447.09 is: 5,170.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.10 : 12,194.87 = 3,447.09 : x
  2. Step 2: Convert to fraction form
    8,130.10/12,194.87 = 3,447.09/x
  3. Step 3: Cross multiply
    8,130.10x = 12,194.87 × 3,447.09
  4. Step 4: Simplify right side
    8,130.10x = 42,036,797.19
  5. Step 5: Solve for x
    x = 42,036,797.19/8,130.10
  6. Step 6: Final answer
    x = 5,170.52

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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.