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Finding the Fourth Proportional to 6,936.09, 9,572.70 and 3,953.00

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Solution

The fourth proportional to 6,936.09, 9,572.70 and 3,953.00 is: 5,455.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.09 : 9,572.70 = 3,953.00 : x
  2. Step 2: Convert to fraction form
    6,936.09/9,572.70 = 3,953.00/x
  3. Step 3: Cross multiply
    6,936.09x = 9,572.70 × 3,953.00
  4. Step 4: Simplify right side
    6,936.09x = 37,840,835.24
  5. Step 5: Solve for x
    x = 37,840,835.24/6,936.09
  6. Step 6: Final answer
    x = 5,455.64

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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.