Home / 11,892.10-16,411.70-6,857.14

Finding the Fourth Proportional to 11,892.10, 16,411.70 and 6,857.14

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Solution

The fourth proportional to 11,892.10, 16,411.70 and 6,857.14 is: 9,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.10 : 16,411.70 = 6,857.14 : x
  2. Step 2: Convert to fraction form
    11,892.10/16,411.70 = 6,857.14/x
  3. Step 3: Cross multiply
    11,892.10x = 16,411.70 × 6,857.14
  4. Step 4: Simplify right side
    11,892.10x = 112,537,324.54
  5. Step 5: Solve for x
    x = 112,537,324.54/11,892.10
  6. Step 6: Final answer
    x = 9,463.20

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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.