Home / 12,157.54-18,236.34-4,761.03

Finding the Fourth Proportional to 12,157.54, 18,236.34 and 4,761.03

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Solution

The fourth proportional to 12,157.54, 18,236.34 and 4,761.03 is: 7,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.54 : 18,236.34 = 4,761.03 : x
  2. Step 2: Convert to fraction form
    12,157.54/18,236.34 = 4,761.03/x
  3. Step 3: Cross multiply
    12,157.54x = 18,236.34 × 4,761.03
  4. Step 4: Simplify right side
    12,157.54x = 86,823,727.64
  5. Step 5: Solve for x
    x = 86,823,727.64/12,157.54
  6. Step 6: Final answer
    x = 7,141.55

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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.