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Finding the Fourth Proportional to 11,377.20, 17,049.80 and 9,041.20

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Solution

The fourth proportional to 11,377.20, 17,049.80 and 9,041.20 is: 13,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,377.20 : 17,049.80 = 9,041.20 : x
  2. Step 2: Convert to fraction form
    11,377.20/17,049.80 = 9,041.20/x
  3. Step 3: Cross multiply
    11,377.20x = 17,049.80 × 9,041.20
  4. Step 4: Simplify right side
    11,377.20x = 154,150,651.76
  5. Step 5: Solve for x
    x = 154,150,651.76/11,377.20
  6. Step 6: Final answer
    x = 13,549.09

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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.