Home / 18,143.54-25,031.64-11,859.56

Finding the Fourth Proportional to 18,143.54, 25,031.64 and 11,859.56

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Solution

The fourth proportional to 18,143.54, 25,031.64 and 11,859.56 is: 16,361.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.54 : 25,031.64 = 11,859.56 : x
  2. Step 2: Convert to fraction form
    18,143.54/25,031.64 = 11,859.56/x
  3. Step 3: Cross multiply
    18,143.54x = 25,031.64 × 11,859.56
  4. Step 4: Simplify right side
    18,143.54x = 296,864,236.48
  5. Step 5: Solve for x
    x = 296,864,236.48/18,143.54
  6. Step 6: Final answer
    x = 16,361.98

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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.