Home / 12,216.80-18,304.68-9,739.28

Finding the Fourth Proportional to 12,216.80, 18,304.68 and 9,739.28

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Solution

The fourth proportional to 12,216.80, 18,304.68 and 9,739.28 is: 14,592.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.80 : 18,304.68 = 9,739.28 : x
  2. Step 2: Convert to fraction form
    12,216.80/18,304.68 = 9,739.28/x
  3. Step 3: Cross multiply
    12,216.80x = 18,304.68 × 9,739.28
  4. Step 4: Simplify right side
    12,216.80x = 178,274,403.83
  5. Step 5: Solve for x
    x = 178,274,403.83/12,216.80
  6. Step 6: Final answer
    x = 14,592.56

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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.