Home / 8,263.38-12,384.55-3,871.16

Finding the Fourth Proportional to 8,263.38, 12,384.55 and 3,871.16

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Solution

The fourth proportional to 8,263.38, 12,384.55 and 3,871.16 is: 5,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.38 : 12,384.55 = 3,871.16 : x
  2. Step 2: Convert to fraction form
    8,263.38/12,384.55 = 3,871.16/x
  3. Step 3: Cross multiply
    8,263.38x = 12,384.55 × 3,871.16
  4. Step 4: Simplify right side
    8,263.38x = 47,942,542.16
  5. Step 5: Solve for x
    x = 47,942,542.16/8,263.38
  6. Step 6: Final answer
    x = 5,801.81

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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.