Home / 11,690.33-16,132.43-6,385.19

Finding the Fourth Proportional to 11,690.33, 16,132.43 and 6,385.19

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Solution

The fourth proportional to 11,690.33, 16,132.43 and 6,385.19 is: 8,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.33 : 16,132.43 = 6,385.19 : x
  2. Step 2: Convert to fraction form
    11,690.33/16,132.43 = 6,385.19/x
  3. Step 3: Cross multiply
    11,690.33x = 16,132.43 × 6,385.19
  4. Step 4: Simplify right side
    11,690.33x = 103,008,630.71
  5. Step 5: Solve for x
    x = 103,008,630.71/11,690.33
  6. Step 6: Final answer
    x = 8,811.44

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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.