Home / 11,685.28-16,125.44-6,380.18

Finding the Fourth Proportional to 11,685.28, 16,125.44 and 6,380.18

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Solution

The fourth proportional to 11,685.28, 16,125.44 and 6,380.18 is: 8,804.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.28 : 16,125.44 = 6,380.18 : x
  2. Step 2: Convert to fraction form
    11,685.28/16,125.44 = 6,380.18/x
  3. Step 3: Cross multiply
    11,685.28x = 16,125.44 × 6,380.18
  4. Step 4: Simplify right side
    11,685.28x = 102,883,209.78
  5. Step 5: Solve for x
    x = 102,883,209.78/11,685.28
  6. Step 6: Final answer
    x = 8,804.51

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Double scale
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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.