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Finding the Fourth Proportional to 11,378.88, 17,061 and 7,471.44

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Solution

The fourth proportional to 11,378.88, 17,061 and 7,471.44 is: 11,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.88 : 17,061 = 7,471.44 : x
  2. Step 2: Convert to fraction form
    11,378.88/17,061 = 7,471.44/x
  3. Step 3: Cross multiply
    11,378.88x = 17,061 × 7,471.44
  4. Step 4: Simplify right side
    11,378.88x = 127,470,237.84
  5. Step 5: Solve for x
    x = 127,470,237.84/11,378.88
  6. Step 6: Final answer
    x = 11,202.35

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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.