Home / 11,931.14-16,464.90-6,625.98

Finding the Fourth Proportional to 11,931.14, 16,464.90 and 6,625.98

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Solution

The fourth proportional to 11,931.14, 16,464.90 and 6,625.98 is: 9,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.14 : 16,464.90 = 6,625.98 : x
  2. Step 2: Convert to fraction form
    11,931.14/16,464.90 = 6,625.98/x
  3. Step 3: Cross multiply
    11,931.14x = 16,464.90 × 6,625.98
  4. Step 4: Simplify right side
    11,931.14x = 109,096,098.10
  5. Step 5: Solve for x
    x = 109,096,098.10/11,931.14
  6. Step 6: Final answer
    x = 9,143.81

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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.