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Finding the Fourth Proportional to 12,373.56, 18,558.99 and 4,475.79

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Solution

The fourth proportional to 12,373.56, 18,558.99 and 4,475.79 is: 6,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.56 : 18,558.99 = 4,475.79 : x
  2. Step 2: Convert to fraction form
    12,373.56/18,558.99 = 4,475.79/x
  3. Step 3: Cross multiply
    12,373.56x = 18,558.99 × 4,475.79
  4. Step 4: Simplify right side
    12,373.56x = 83,066,141.85
  5. Step 5: Solve for x
    x = 83,066,141.85/12,373.56
  6. Step 6: Final answer
    x = 6,713.20

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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.