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Finding the Fourth Proportional to 12,647.93, 17,454.73 and 6,983.49

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Solution

The fourth proportional to 12,647.93, 17,454.73 and 6,983.49 is: 9,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.93 : 17,454.73 = 6,983.49 : x
  2. Step 2: Convert to fraction form
    12,647.93/17,454.73 = 6,983.49/x
  3. Step 3: Cross multiply
    12,647.93x = 17,454.73 × 6,983.49
  4. Step 4: Simplify right side
    12,647.93x = 121,894,905.14
  5. Step 5: Solve for x
    x = 121,894,905.14/12,647.93
  6. Step 6: Final answer
    x = 9,637.53

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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.