Home / 12,142.79-16,757.33-6,765.58

Finding the Fourth Proportional to 12,142.79, 16,757.33 and 6,765.58

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Solution

The fourth proportional to 12,142.79, 16,757.33 and 6,765.58 is: 9,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.79 : 16,757.33 = 6,765.58 : x
  2. Step 2: Convert to fraction form
    12,142.79/16,757.33 = 6,765.58/x
  3. Step 3: Cross multiply
    12,142.79x = 16,757.33 × 6,765.58
  4. Step 4: Simplify right side
    12,142.79x = 113,373,129.01
  5. Step 5: Solve for x
    x = 113,373,129.01/12,142.79
  6. Step 6: Final answer
    x = 9,336.67

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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.