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Finding the Fourth Proportional to 7,471.32, 11,209.40 and 3,576

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Solution

The fourth proportional to 7,471.32, 11,209.40 and 3,576 is: 5,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.32 : 11,209.40 = 3,576 : x
  2. Step 2: Convert to fraction form
    7,471.32/11,209.40 = 3,576/x
  3. Step 3: Cross multiply
    7,471.32x = 11,209.40 × 3,576
  4. Step 4: Simplify right side
    7,471.32x = 40,084,814.40
  5. Step 5: Solve for x
    x = 40,084,814.40/7,471.32
  6. Step 6: Final answer
    x = 5,365.16

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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.