Home / 11,178.12-16,763.84-3,680.29

Finding the Fourth Proportional to 11,178.12, 16,763.84 and 3,680.29

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Solution

The fourth proportional to 11,178.12, 16,763.84 and 3,680.29 is: 5,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.12 : 16,763.84 = 3,680.29 : x
  2. Step 2: Convert to fraction form
    11,178.12/16,763.84 = 3,680.29/x
  3. Step 3: Cross multiply
    11,178.12x = 16,763.84 × 3,680.29
  4. Step 4: Simplify right side
    11,178.12x = 61,695,878.43
  5. Step 5: Solve for x
    x = 61,695,878.43/11,178.12
  6. Step 6: Final answer
    x = 5,519.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.