Home / 12,157.04-18,235.56-3,391.97

Finding the Fourth Proportional to 12,157.04, 18,235.56 and 3,391.97

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Solution

The fourth proportional to 12,157.04, 18,235.56 and 3,391.97 is: 5,087.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.04 : 18,235.56 = 3,391.97 : x
  2. Step 2: Convert to fraction form
    12,157.04/18,235.56 = 3,391.97/x
  3. Step 3: Cross multiply
    12,157.04x = 18,235.56 × 3,391.97
  4. Step 4: Simplify right side
    12,157.04x = 61,854,381.28
  5. Step 5: Solve for x
    x = 61,854,381.28/12,157.04
  6. Step 6: Final answer
    x = 5,087.95

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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.