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Finding the Fourth Proportional to 18,614, 25,687.36 and 10,230.56

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Solution

The fourth proportional to 18,614, 25,687.36 and 10,230.56 is: 14,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614 : 25,687.36 = 10,230.56 : x
  2. Step 2: Convert to fraction form
    18,614/25,687.36 = 10,230.56/x
  3. Step 3: Cross multiply
    18,614x = 25,687.36 × 10,230.56
  4. Step 4: Simplify right side
    18,614x = 262,796,077.72
  5. Step 5: Solve for x
    x = 262,796,077.72/18,614
  6. Step 6: Final answer
    x = 14,118.19

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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.