Home / 11,699.10-16,145.70-6,664.89

Finding the Fourth Proportional to 11,699.10, 16,145.70 and 6,664.89

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Solution

The fourth proportional to 11,699.10, 16,145.70 and 6,664.89 is: 9,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.10 : 16,145.70 = 6,664.89 : x
  2. Step 2: Convert to fraction form
    11,699.10/16,145.70 = 6,664.89/x
  3. Step 3: Cross multiply
    11,699.10x = 16,145.70 × 6,664.89
  4. Step 4: Simplify right side
    11,699.10x = 107,609,314.47
  5. Step 5: Solve for x
    x = 107,609,314.47/11,699.10
  6. Step 6: Final answer
    x = 9,198.08

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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.