Home / 12,285.90-18,444.41-10,231.02

Finding the Fourth Proportional to 12,285.90, 18,444.41 and 10,231.02

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Solution

The fourth proportional to 12,285.90, 18,444.41 and 10,231.02 is: 15,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.90 : 18,444.41 = 10,231.02 : x
  2. Step 2: Convert to fraction form
    12,285.90/18,444.41 = 10,231.02/x
  3. Step 3: Cross multiply
    12,285.90x = 18,444.41 × 10,231.02
  4. Step 4: Simplify right side
    12,285.90x = 188,705,076.44
  5. Step 5: Solve for x
    x = 188,705,076.44/12,285.90
  6. Step 6: Final answer
    x = 15,359.48

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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.