Home / 12,509.22-18,743.00-8,803.67

Finding the Fourth Proportional to 12,509.22, 18,743.00 and 8,803.67

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Solution

The fourth proportional to 12,509.22, 18,743.00 and 8,803.67 is: 13,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.22 : 18,743.00 = 8,803.67 : x
  2. Step 2: Convert to fraction form
    12,509.22/18,743.00 = 8,803.67/x
  3. Step 3: Cross multiply
    12,509.22x = 18,743.00 × 8,803.67
  4. Step 4: Simplify right side
    12,509.22x = 165,007,142.79
  5. Step 5: Solve for x
    x = 165,007,142.79/12,509.22
  6. Step 6: Final answer
    x = 13,190.85

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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.