Home / 11,885.86-16,408.02-7,107.94

Finding the Fourth Proportional to 11,885.86, 16,408.02 and 7,107.94

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Solution

The fourth proportional to 11,885.86, 16,408.02 and 7,107.94 is: 9,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.86 : 16,408.02 = 7,107.94 : x
  2. Step 2: Convert to fraction form
    11,885.86/16,408.02 = 7,107.94/x
  3. Step 3: Cross multiply
    11,885.86x = 16,408.02 × 7,107.94
  4. Step 4: Simplify right side
    11,885.86x = 116,627,221.68
  5. Step 5: Solve for x
    x = 116,627,221.68/11,885.86
  6. Step 6: Final answer
    x = 9,812.27

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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.