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Finding the Fourth Proportional to 18,145.25, 25,040.08 and 10,187.48

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Solution

The fourth proportional to 18,145.25, 25,040.08 and 10,187.48 is: 14,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.25 : 25,040.08 = 10,187.48 : x
  2. Step 2: Convert to fraction form
    18,145.25/25,040.08 = 10,187.48/x
  3. Step 3: Cross multiply
    18,145.25x = 25,040.08 × 10,187.48
  4. Step 4: Simplify right side
    18,145.25x = 255,095,163.53
  5. Step 5: Solve for x
    x = 255,095,163.53/18,145.25
  6. Step 6: Final answer
    x = 14,058.51

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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.