Home / 18,654.45-25,742.52-10,156.41

Finding the Fourth Proportional to 18,654.45, 25,742.52 and 10,156.41

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Solution

The fourth proportional to 18,654.45, 25,742.52 and 10,156.41 is: 14,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.45 : 25,742.52 = 10,156.41 : x
  2. Step 2: Convert to fraction form
    18,654.45/25,742.52 = 10,156.41/x
  3. Step 3: Cross multiply
    18,654.45x = 25,742.52 × 10,156.41
  4. Step 4: Simplify right side
    18,654.45x = 261,451,587.55
  5. Step 5: Solve for x
    x = 261,451,587.55/18,654.45
  6. Step 6: Final answer
    x = 14,015.51

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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.