Home / 11,671.38-16,106.90-6,635.81

Finding the Fourth Proportional to 11,671.38, 16,106.90 and 6,635.81

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Solution

The fourth proportional to 11,671.38, 16,106.90 and 6,635.81 is: 9,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.38 : 16,106.90 = 6,635.81 : x
  2. Step 2: Convert to fraction form
    11,671.38/16,106.90 = 6,635.81/x
  3. Step 3: Cross multiply
    11,671.38x = 16,106.90 × 6,635.81
  4. Step 4: Simplify right side
    11,671.38x = 106,882,328.09
  5. Step 5: Solve for x
    x = 106,882,328.09/11,671.38
  6. Step 6: Final answer
    x = 9,157.64

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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.