Home / 18,638.48-25,721.71-10,682.23

Finding the Fourth Proportional to 18,638.48, 25,721.71 and 10,682.23

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Solution

The fourth proportional to 18,638.48, 25,721.71 and 10,682.23 is: 14,741.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.48 : 25,721.71 = 10,682.23 : x
  2. Step 2: Convert to fraction form
    18,638.48/25,721.71 = 10,682.23/x
  3. Step 3: Cross multiply
    18,638.48x = 25,721.71 × 10,682.23
  4. Step 4: Simplify right side
    18,638.48x = 274,765,093.60
  5. Step 5: Solve for x
    x = 274,765,093.60/18,638.48
  6. Step 6: Final answer
    x = 14,741.82

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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.