Home / 8,190.42-12,276.87-4,237.70

Finding the Fourth Proportional to 8,190.42, 12,276.87 and 4,237.70

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Solution

The fourth proportional to 8,190.42, 12,276.87 and 4,237.70 is: 6,352.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.42 : 12,276.87 = 4,237.70 : x
  2. Step 2: Convert to fraction form
    8,190.42/12,276.87 = 4,237.70/x
  3. Step 3: Cross multiply
    8,190.42x = 12,276.87 × 4,237.70
  4. Step 4: Simplify right side
    8,190.42x = 52,025,630.61
  5. Step 5: Solve for x
    x = 52,025,630.61/8,190.42
  6. Step 6: Final answer
    x = 6,352.01

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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.