Home / 8,315.43-12,475.14-2,768.82

Finding the Fourth Proportional to 8,315.43, 12,475.14 and 2,768.82

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Solution

The fourth proportional to 8,315.43, 12,475.14 and 2,768.82 is: 4,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.43 : 12,475.14 = 2,768.82 : x
  2. Step 2: Convert to fraction form
    8,315.43/12,475.14 = 2,768.82/x
  3. Step 3: Cross multiply
    8,315.43x = 12,475.14 × 2,768.82
  4. Step 4: Simplify right side
    8,315.43x = 34,541,473.02
  5. Step 5: Solve for x
    x = 34,541,473.02/8,315.43
  6. Step 6: Final answer
    x = 4,153.90

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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.