Home / 12,510.52-18,768.34-4,190.60

Finding the Fourth Proportional to 12,510.52, 18,768.34 and 4,190.60

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Solution

The fourth proportional to 12,510.52, 18,768.34 and 4,190.60 is: 6,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.52 : 18,768.34 = 4,190.60 : x
  2. Step 2: Convert to fraction form
    12,510.52/18,768.34 = 4,190.60/x
  3. Step 3: Cross multiply
    12,510.52x = 18,768.34 × 4,190.60
  4. Step 4: Simplify right side
    12,510.52x = 78,650,657.76
  5. Step 5: Solve for x
    x = 78,650,657.76/12,510.52
  6. Step 6: Final answer
    x = 6,286.76

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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.