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Finding the Fourth Proportional to 12,659.36, 17,463.06 and 7,620.57

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Solution

The fourth proportional to 12,659.36, 17,463.06 and 7,620.57 is: 10,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.36 : 17,463.06 = 7,620.57 : x
  2. Step 2: Convert to fraction form
    12,659.36/17,463.06 = 7,620.57/x
  3. Step 3: Cross multiply
    12,659.36x = 17,463.06 × 7,620.57
  4. Step 4: Simplify right side
    12,659.36x = 133,078,471.14
  5. Step 5: Solve for x
    x = 133,078,471.14/12,659.36
  6. Step 6: Final answer
    x = 10,512.26

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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.