Home / 8,087.86-12,126.12-4,190.14

Finding the Fourth Proportional to 8,087.86, 12,126.12 and 4,190.14

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Solution

The fourth proportional to 8,087.86, 12,126.12 and 4,190.14 is: 6,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.86 : 12,126.12 = 4,190.14 : x
  2. Step 2: Convert to fraction form
    8,087.86/12,126.12 = 4,190.14/x
  3. Step 3: Cross multiply
    8,087.86x = 12,126.12 × 4,190.14
  4. Step 4: Simplify right side
    8,087.86x = 50,810,140.46
  5. Step 5: Solve for x
    x = 50,810,140.46/8,087.86
  6. Step 6: Final answer
    x = 6,282.27

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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.