Home / 13,178.16-18,183.42-8,932.66

Finding the Fourth Proportional to 13,178.16, 18,183.42 and 8,932.66

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Solution

The fourth proportional to 13,178.16, 18,183.42 and 8,932.66 is: 12,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.16 : 18,183.42 = 8,932.66 : x
  2. Step 2: Convert to fraction form
    13,178.16/18,183.42 = 8,932.66/x
  3. Step 3: Cross multiply
    13,178.16x = 18,183.42 × 8,932.66
  4. Step 4: Simplify right side
    13,178.16x = 162,426,308.50
  5. Step 5: Solve for x
    x = 162,426,308.50/13,178.16
  6. Step 6: Final answer
    x = 12,325.42

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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.