Home / 11,690.10-16,132.44-6,384.90

Finding the Fourth Proportional to 11,690.10, 16,132.44 and 6,384.90

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Solution

The fourth proportional to 11,690.10, 16,132.44 and 6,384.90 is: 8,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.10 : 16,132.44 = 6,384.90 : x
  2. Step 2: Convert to fraction form
    11,690.10/16,132.44 = 6,384.90/x
  3. Step 3: Cross multiply
    11,690.10x = 16,132.44 × 6,384.90
  4. Step 4: Simplify right side
    11,690.10x = 103,004,016.16
  5. Step 5: Solve for x
    x = 103,004,016.16/11,690.10
  6. Step 6: Final answer
    x = 8,811.22

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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.