Home / 11,922.40-16,452.68-6,617.48

Finding the Fourth Proportional to 11,922.40, 16,452.68 and 6,617.48

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Solution

The fourth proportional to 11,922.40, 16,452.68 and 6,617.48 is: 9,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.40 : 16,452.68 = 6,617.48 : x
  2. Step 2: Convert to fraction form
    11,922.40/16,452.68 = 6,617.48/x
  3. Step 3: Cross multiply
    11,922.40x = 16,452.68 × 6,617.48
  4. Step 4: Simplify right side
    11,922.40x = 108,875,280.85
  5. Step 5: Solve for x
    x = 108,875,280.85/11,922.40
  6. Step 6: Final answer
    x = 9,131.99

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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.