Home / 18,754.21-25,889.30-12,711.94

Finding the Fourth Proportional to 18,754.21, 25,889.30 and 12,711.94

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Solution

The fourth proportional to 18,754.21, 25,889.30 and 12,711.94 is: 17,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.21 : 25,889.30 = 12,711.94 : x
  2. Step 2: Convert to fraction form
    18,754.21/25,889.30 = 12,711.94/x
  3. Step 3: Cross multiply
    18,754.21x = 25,889.30 × 12,711.94
  4. Step 4: Simplify right side
    18,754.21x = 329,103,111.88
  5. Step 5: Solve for x
    x = 329,103,111.88/18,754.21
  6. Step 6: Final answer
    x = 17,548.23

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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.