Home / 12,313.24-18,455.10-4,517.80

Finding the Fourth Proportional to 12,313.24, 18,455.10 and 4,517.80

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Solution

The fourth proportional to 12,313.24, 18,455.10 and 4,517.80 is: 6,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.24 : 18,455.10 = 4,517.80 : x
  2. Step 2: Convert to fraction form
    12,313.24/18,455.10 = 4,517.80/x
  3. Step 3: Cross multiply
    12,313.24x = 18,455.10 × 4,517.80
  4. Step 4: Simplify right side
    12,313.24x = 83,376,450.78
  5. Step 5: Solve for x
    x = 83,376,450.78/12,313.24
  6. Step 6: Final answer
    x = 6,771.28

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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.