Home / 8,322.45-12,480.03-2,477.90

Finding the Fourth Proportional to 8,322.45, 12,480.03 and 2,477.90

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Solution

The fourth proportional to 8,322.45, 12,480.03 and 2,477.90 is: 3,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.45 : 12,480.03 = 2,477.90 : x
  2. Step 2: Convert to fraction form
    8,322.45/12,480.03 = 2,477.90/x
  3. Step 3: Cross multiply
    8,322.45x = 12,480.03 × 2,477.90
  4. Step 4: Simplify right side
    8,322.45x = 30,924,203.94
  5. Step 5: Solve for x
    x = 30,924,203.94/8,322.45
  6. Step 6: Final answer
    x = 3,715.76

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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.