Home / 11,743.34-16,205.79-6,438.50

Finding the Fourth Proportional to 11,743.34, 16,205.79 and 6,438.50

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Solution

The fourth proportional to 11,743.34, 16,205.79 and 6,438.50 is: 8,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.34 : 16,205.79 = 6,438.50 : x
  2. Step 2: Convert to fraction form
    11,743.34/16,205.79 = 6,438.50/x
  3. Step 3: Cross multiply
    11,743.34x = 16,205.79 × 6,438.50
  4. Step 4: Simplify right side
    11,743.34x = 104,340,954.50
  5. Step 5: Solve for x
    x = 104,340,954.50/11,743.34
  6. Step 6: Final answer
    x = 8,885.12

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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.