Home / 15,133.66-20,884.94-8,327.96

Finding the Fourth Proportional to 15,133.66, 20,884.94 and 8,327.96

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Solution

The fourth proportional to 15,133.66, 20,884.94 and 8,327.96 is: 11,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133.66 : 20,884.94 = 8,327.96 : x
  2. Step 2: Convert to fraction form
    15,133.66/20,884.94 = 8,327.96/x
  3. Step 3: Cross multiply
    15,133.66x = 20,884.94 × 8,327.96
  4. Step 4: Simplify right side
    15,133.66x = 173,928,944.92
  5. Step 5: Solve for x
    x = 173,928,944.92/15,133.66
  6. Step 6: Final answer
    x = 11,492.85

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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.