Home / 8,126.40-12,189.60-2,282.88

Finding the Fourth Proportional to 8,126.40, 12,189.60 and 2,282.88

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Solution

The fourth proportional to 8,126.40, 12,189.60 and 2,282.88 is: 3,424.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.40 : 12,189.60 = 2,282.88 : x
  2. Step 2: Convert to fraction form
    8,126.40/12,189.60 = 2,282.88/x
  3. Step 3: Cross multiply
    8,126.40x = 12,189.60 × 2,282.88
  4. Step 4: Simplify right side
    8,126.40x = 27,827,394.05
  5. Step 5: Solve for x
    x = 27,827,394.05/8,126.40
  6. Step 6: Final answer
    x = 3,424.32

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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.