Home / 12,427.20-17,149.92-6,762.36

Finding the Fourth Proportional to 12,427.20, 17,149.92 and 6,762.36

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Solution

The fourth proportional to 12,427.20, 17,149.92 and 6,762.36 is: 9,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.20 : 17,149.92 = 6,762.36 : x
  2. Step 2: Convert to fraction form
    12,427.20/17,149.92 = 6,762.36/x
  3. Step 3: Cross multiply
    12,427.20x = 17,149.92 × 6,762.36
  4. Step 4: Simplify right side
    12,427.20x = 115,973,933.01
  5. Step 5: Solve for x
    x = 115,973,933.01/12,427.20
  6. Step 6: Final answer
    x = 9,332.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.