Home / 12,218.24-16,861.20-6,629.24

Finding the Fourth Proportional to 12,218.24, 16,861.20 and 6,629.24

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Solution

The fourth proportional to 12,218.24, 16,861.20 and 6,629.24 is: 9,148.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.24 : 16,861.20 = 6,629.24 : x
  2. Step 2: Convert to fraction form
    12,218.24/16,861.20 = 6,629.24/x
  3. Step 3: Cross multiply
    12,218.24x = 16,861.20 × 6,629.24
  4. Step 4: Simplify right side
    12,218.24x = 111,776,941.49
  5. Step 5: Solve for x
    x = 111,776,941.49/12,218.24
  6. Step 6: Final answer
    x = 9,148.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.