Home / 13,723.58-20,590.29-5,398.98

Finding the Fourth Proportional to 13,723.58, 20,590.29 and 5,398.98

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Solution

The fourth proportional to 13,723.58, 20,590.29 and 5,398.98 is: 8,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.58 : 20,590.29 = 5,398.98 : x
  2. Step 2: Convert to fraction form
    13,723.58/20,590.29 = 5,398.98/x
  3. Step 3: Cross multiply
    13,723.58x = 20,590.29 × 5,398.98
  4. Step 4: Simplify right side
    13,723.58x = 111,166,563.90
  5. Step 5: Solve for x
    x = 111,166,563.90/13,723.58
  6. Step 6: Final answer
    x = 8,100.41

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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.