Home / 11,892.89-16,412.13-6,857.07

Finding the Fourth Proportional to 11,892.89, 16,412.13 and 6,857.07

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Solution

The fourth proportional to 11,892.89, 16,412.13 and 6,857.07 is: 9,462.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.89 : 16,412.13 = 6,857.07 : x
  2. Step 2: Convert to fraction form
    11,892.89/16,412.13 = 6,857.07/x
  3. Step 3: Cross multiply
    11,892.89x = 16,412.13 × 6,857.07
  4. Step 4: Simplify right side
    11,892.89x = 112,539,124.26
  5. Step 5: Solve for x
    x = 112,539,124.26/11,892.89
  6. Step 6: Final answer
    x = 9,462.73

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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.