Home / 13,166.20-19,749.30-3,932.20

Finding the Fourth Proportional to 13,166.20, 19,749.30 and 3,932.20

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Solution

The fourth proportional to 13,166.20, 19,749.30 and 3,932.20 is: 5,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.20 : 19,749.30 = 3,932.20 : x
  2. Step 2: Convert to fraction form
    13,166.20/19,749.30 = 3,932.20/x
  3. Step 3: Cross multiply
    13,166.20x = 19,749.30 × 3,932.20
  4. Step 4: Simplify right side
    13,166.20x = 77,658,197.46
  5. Step 5: Solve for x
    x = 77,658,197.46/13,166.20
  6. Step 6: Final answer
    x = 5,898.30

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1.5x scale

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.