Home / 11,743.31-16,205.77-6,438.01

Finding the Fourth Proportional to 11,743.31, 16,205.77 and 6,438.01

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Solution

The fourth proportional to 11,743.31, 16,205.77 and 6,438.01 is: 8,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.31 : 16,205.77 = 6,438.01 : x
  2. Step 2: Convert to fraction form
    11,743.31/16,205.77 = 6,438.01/x
  3. Step 3: Cross multiply
    11,743.31x = 16,205.77 × 6,438.01
  4. Step 4: Simplify right side
    11,743.31x = 104,332,941.92
  5. Step 5: Solve for x
    x = 104,332,941.92/11,743.31
  6. Step 6: Final answer
    x = 8,884.46

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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.