Home / 11,125.55-15,358.82-6,408.92

Finding the Fourth Proportional to 11,125.55, 15,358.82 and 6,408.92

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Solution

The fourth proportional to 11,125.55, 15,358.82 and 6,408.92 is: 8,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.55 : 15,358.82 = 6,408.92 : x
  2. Step 2: Convert to fraction form
    11,125.55/15,358.82 = 6,408.92/x
  3. Step 3: Cross multiply
    11,125.55x = 15,358.82 × 6,408.92
  4. Step 4: Simplify right side
    11,125.55x = 98,433,455.03
  5. Step 5: Solve for x
    x = 98,433,455.03/11,125.55
  6. Step 6: Final answer
    x = 8,847.51

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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.