Home / 11,907.30-16,451.85-9,408.58

Finding the Fourth Proportional to 11,907.30, 16,451.85 and 9,408.58

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Solution

The fourth proportional to 11,907.30, 16,451.85 and 9,408.58 is: 12,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.30 : 16,451.85 = 9,408.58 : x
  2. Step 2: Convert to fraction form
    11,907.30/16,451.85 = 9,408.58/x
  3. Step 3: Cross multiply
    11,907.30x = 16,451.85 × 9,408.58
  4. Step 4: Simplify right side
    11,907.30x = 154,788,546.87
  5. Step 5: Solve for x
    x = 154,788,546.87/11,907.30
  6. Step 6: Final answer
    x = 12,999.47

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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.