Home / 13,957.20-20,903.40-9,550.80

Finding the Fourth Proportional to 13,957.20, 20,903.40 and 9,550.80

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Solution

The fourth proportional to 13,957.20, 20,903.40 and 9,550.80 is: 14,304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.20 : 20,903.40 = 9,550.80 : x
  2. Step 2: Convert to fraction form
    13,957.20/20,903.40 = 9,550.80/x
  3. Step 3: Cross multiply
    13,957.20x = 20,903.40 × 9,550.80
  4. Step 4: Simplify right side
    13,957.20x = 199,644,192.72
  5. Step 5: Solve for x
    x = 199,644,192.72/13,957.20
  6. Step 6: Final answer
    x = 14,304.03

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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.