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Finding the Fourth Proportional to 12,553.31, 17,323.57 and 6,965.39

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Solution

The fourth proportional to 12,553.31, 17,323.57 and 6,965.39 is: 9,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.31 : 17,323.57 = 6,965.39 : x
  2. Step 2: Convert to fraction form
    12,553.31/17,323.57 = 6,965.39/x
  3. Step 3: Cross multiply
    12,553.31x = 17,323.57 × 6,965.39
  4. Step 4: Simplify right side
    12,553.31x = 120,665,473.26
  5. Step 5: Solve for x
    x = 120,665,473.26/12,553.31
  6. Step 6: Final answer
    x = 9,612.24

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1.5x scale

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.