Home / 18,821.06-25,972.41-10,438.34

Finding the Fourth Proportional to 18,821.06, 25,972.41 and 10,438.34

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Solution

The fourth proportional to 18,821.06, 25,972.41 and 10,438.34 is: 14,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.06 : 25,972.41 = 10,438.34 : x
  2. Step 2: Convert to fraction form
    18,821.06/25,972.41 = 10,438.34/x
  3. Step 3: Cross multiply
    18,821.06x = 25,972.41 × 10,438.34
  4. Step 4: Simplify right side
    18,821.06x = 271,108,846.20
  5. Step 5: Solve for x
    x = 271,108,846.20/18,821.06
  6. Step 6: Final answer
    x = 14,404.55

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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.