Home / 13,935.75-20,909.77-5,631.98

Finding the Fourth Proportional to 13,935.75, 20,909.77 and 5,631.98

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Solution

The fourth proportional to 13,935.75, 20,909.77 and 5,631.98 is: 8,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.75 : 20,909.77 = 5,631.98 : x
  2. Step 2: Convert to fraction form
    13,935.75/20,909.77 = 5,631.98/x
  3. Step 3: Cross multiply
    13,935.75x = 20,909.77 × 5,631.98
  4. Step 4: Simplify right side
    13,935.75x = 117,763,421.27
  5. Step 5: Solve for x
    x = 117,763,421.27/13,935.75
  6. Step 6: Final answer
    x = 8,450.46

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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.