Home / 13,123.20-19,692-6,197.52

Finding the Fourth Proportional to 13,123.20, 19,692 and 6,197.52

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Solution

The fourth proportional to 13,123.20, 19,692 and 6,197.52 is: 9,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.20 : 19,692 = 6,197.52 : x
  2. Step 2: Convert to fraction form
    13,123.20/19,692 = 6,197.52/x
  3. Step 3: Cross multiply
    13,123.20x = 19,692 × 6,197.52
  4. Step 4: Simplify right side
    13,123.20x = 122,041,563.84
  5. Step 5: Solve for x
    x = 122,041,563.84/13,123.20
  6. Step 6: Final answer
    x = 9,299.68

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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.