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Finding the Fourth Proportional to 11,872.20, 17,808.30 and 10,336.20

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Solution

The fourth proportional to 11,872.20, 17,808.30 and 10,336.20 is: 15,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.20 : 17,808.30 = 10,336.20 : x
  2. Step 2: Convert to fraction form
    11,872.20/17,808.30 = 10,336.20/x
  3. Step 3: Cross multiply
    11,872.20x = 17,808.30 × 10,336.20
  4. Step 4: Simplify right side
    11,872.20x = 184,070,150.46
  5. Step 5: Solve for x
    x = 184,070,150.46/11,872.20
  6. Step 6: Final answer
    x = 15,504.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.