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Finding the Fourth Proportional to 12,796.60, 17,652.17 and 7,490.39

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Solution

The fourth proportional to 12,796.60, 17,652.17 and 7,490.39 is: 10,332.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.60 : 17,652.17 = 7,490.39 : x
  2. Step 2: Convert to fraction form
    12,796.60/17,652.17 = 7,490.39/x
  3. Step 3: Cross multiply
    12,796.60x = 17,652.17 × 7,490.39
  4. Step 4: Simplify right side
    12,796.60x = 132,221,637.65
  5. Step 5: Solve for x
    x = 132,221,637.65/12,796.60
  6. Step 6: Final answer
    x = 10,332.56

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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.