Home / 12,157.96-18,235.32-3,393.76

Finding the Fourth Proportional to 12,157.96, 18,235.32 and 3,393.76

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Solution

The fourth proportional to 12,157.96, 18,235.32 and 3,393.76 is: 5,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.96 : 18,235.32 = 3,393.76 : x
  2. Step 2: Convert to fraction form
    12,157.96/18,235.32 = 3,393.76/x
  3. Step 3: Cross multiply
    12,157.96x = 18,235.32 × 3,393.76
  4. Step 4: Simplify right side
    12,157.96x = 61,886,241.29
  5. Step 5: Solve for x
    x = 61,886,241.29/12,157.96
  6. Step 6: Final answer
    x = 5,090.18

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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.