Home / 11,699.62-17,561.58-6,778.87

Finding the Fourth Proportional to 11,699.62, 17,561.58 and 6,778.87

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Solution

The fourth proportional to 11,699.62, 17,561.58 and 6,778.87 is: 10,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.62 : 17,561.58 = 6,778.87 : x
  2. Step 2: Convert to fraction form
    11,699.62/17,561.58 = 6,778.87/x
  3. Step 3: Cross multiply
    11,699.62x = 17,561.58 × 6,778.87
  4. Step 4: Simplify right side
    11,699.62x = 119,047,667.81
  5. Step 5: Solve for x
    x = 119,047,667.81/11,699.62
  6. Step 6: Final answer
    x = 10,175.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.