Home / 11,857.82-16,363.61-6,480.14

Finding the Fourth Proportional to 11,857.82, 16,363.61 and 6,480.14

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Solution

The fourth proportional to 11,857.82, 16,363.61 and 6,480.14 is: 8,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.82 : 16,363.61 = 6,480.14 : x
  2. Step 2: Convert to fraction form
    11,857.82/16,363.61 = 6,480.14/x
  3. Step 3: Cross multiply
    11,857.82x = 16,363.61 × 6,480.14
  4. Step 4: Simplify right side
    11,857.82x = 106,038,492.21
  5. Step 5: Solve for x
    x = 106,038,492.21/11,857.82
  6. Step 6: Final answer
    x = 8,942.49

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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.