Home / 13,558.79-20,342.34-4,674.31

Finding the Fourth Proportional to 13,558.79, 20,342.34 and 4,674.31

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Solution

The fourth proportional to 13,558.79, 20,342.34 and 4,674.31 is: 7,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.79 : 20,342.34 = 4,674.31 : x
  2. Step 2: Convert to fraction form
    13,558.79/20,342.34 = 4,674.31/x
  3. Step 3: Cross multiply
    13,558.79x = 20,342.34 × 4,674.31
  4. Step 4: Simplify right side
    13,558.79x = 95,086,352.43
  5. Step 5: Solve for x
    x = 95,086,352.43/13,558.79
  6. Step 6: Final answer
    x = 7,012.89

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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.