Home / 12,250.23-18,374.93-3,930.78

Finding the Fourth Proportional to 12,250.23, 18,374.93 and 3,930.78

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Solution

The fourth proportional to 12,250.23, 18,374.93 and 3,930.78 is: 5,896.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.23 : 18,374.93 = 3,930.78 : x
  2. Step 2: Convert to fraction form
    12,250.23/18,374.93 = 3,930.78/x
  3. Step 3: Cross multiply
    12,250.23x = 18,374.93 × 3,930.78
  4. Step 4: Simplify right side
    12,250.23x = 72,227,807.35
  5. Step 5: Solve for x
    x = 72,227,807.35/12,250.23
  6. Step 6: Final answer
    x = 5,896.04

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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.