Home / 8,187.90-12,279.60-2,263.38

Finding the Fourth Proportional to 8,187.90, 12,279.60 and 2,263.38

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Solution

The fourth proportional to 8,187.90, 12,279.60 and 2,263.38 is: 3,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.90 : 12,279.60 = 2,263.38 : x
  2. Step 2: Convert to fraction form
    8,187.90/12,279.60 = 2,263.38/x
  3. Step 3: Cross multiply
    8,187.90x = 12,279.60 × 2,263.38
  4. Step 4: Simplify right side
    8,187.90x = 27,793,401.05
  5. Step 5: Solve for x
    x = 27,793,401.05/8,187.90
  6. Step 6: Final answer
    x = 3,394.45

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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.