Home / 13,176.06-18,184.68-7,874.34

Finding the Fourth Proportional to 13,176.06, 18,184.68 and 7,874.34

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Solution

The fourth proportional to 13,176.06, 18,184.68 and 7,874.34 is: 10,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.06 : 18,184.68 = 7,874.34 : x
  2. Step 2: Convert to fraction form
    13,176.06/18,184.68 = 7,874.34/x
  3. Step 3: Cross multiply
    13,176.06x = 18,184.68 × 7,874.34
  4. Step 4: Simplify right side
    13,176.06x = 143,192,353.11
  5. Step 5: Solve for x
    x = 143,192,353.11/13,176.06
  6. Step 6: Final answer
    x = 10,867.62

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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.