Home / 12,350.50-18,525.75-5,425.18

Finding the Fourth Proportional to 12,350.50, 18,525.75 and 5,425.18

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Solution

The fourth proportional to 12,350.50, 18,525.75 and 5,425.18 is: 8,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,350.50 : 18,525.75 = 5,425.18 : x
  2. Step 2: Convert to fraction form
    12,350.50/18,525.75 = 5,425.18/x
  3. Step 3: Cross multiply
    12,350.50x = 18,525.75 × 5,425.18
  4. Step 4: Simplify right side
    12,350.50x = 100,505,528.39
  5. Step 5: Solve for x
    x = 100,505,528.39/12,350.50
  6. Step 6: Final answer
    x = 8,137.77

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.