Home / 15,768.92-23,621.04-12,631.92

Finding the Fourth Proportional to 15,768.92, 23,621.04 and 12,631.92

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Solution

The fourth proportional to 15,768.92, 23,621.04 and 12,631.92 is: 18,921.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.92 : 23,621.04 = 12,631.92 : x
  2. Step 2: Convert to fraction form
    15,768.92/23,621.04 = 12,631.92/x
  3. Step 3: Cross multiply
    15,768.92x = 23,621.04 × 12,631.92
  4. Step 4: Simplify right side
    15,768.92x = 298,379,087.60
  5. Step 5: Solve for x
    x = 298,379,087.60/15,768.92
  6. Step 6: Final answer
    x = 18,921.98

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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.