Home / 11,743.25-16,205.69-6,438.56

Finding the Fourth Proportional to 11,743.25, 16,205.69 and 6,438.56

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Solution

The fourth proportional to 11,743.25, 16,205.69 and 6,438.56 is: 8,885.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.25 : 16,205.69 = 6,438.56 : x
  2. Step 2: Convert to fraction form
    11,743.25/16,205.69 = 6,438.56/x
  3. Step 3: Cross multiply
    11,743.25x = 16,205.69 × 6,438.56
  4. Step 4: Simplify right side
    11,743.25x = 104,341,364.02
  5. Step 5: Solve for x
    x = 104,341,364.02/11,743.25
  6. Step 6: Final answer
    x = 8,885.22

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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.