Home / 18,638.41-25,721.72-10,682.17

Finding the Fourth Proportional to 18,638.41, 25,721.72 and 10,682.17

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Solution

The fourth proportional to 18,638.41, 25,721.72 and 10,682.17 is: 14,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.41 : 25,721.72 = 10,682.17 : x
  2. Step 2: Convert to fraction form
    18,638.41/25,721.72 = 10,682.17/x
  3. Step 3: Cross multiply
    18,638.41x = 25,721.72 × 10,682.17
  4. Step 4: Simplify right side
    18,638.41x = 274,763,764.47
  5. Step 5: Solve for x
    x = 274,763,764.47/18,638.41
  6. Step 6: Final answer
    x = 14,741.80

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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.