Home / 8,181.86-12,275.82-4,283.53

Finding the Fourth Proportional to 8,181.86, 12,275.82 and 4,283.53

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Solution

The fourth proportional to 8,181.86, 12,275.82 and 4,283.53 is: 6,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.86 : 12,275.82 = 4,283.53 : x
  2. Step 2: Convert to fraction form
    8,181.86/12,275.82 = 4,283.53/x
  3. Step 3: Cross multiply
    8,181.86x = 12,275.82 × 4,283.53
  4. Step 4: Simplify right side
    8,181.86x = 52,583,812.56
  5. Step 5: Solve for x
    x = 52,583,812.56/8,181.86
  6. Step 6: Final answer
    x = 6,426.88

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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.