Home / 18,754.04-28,131.60-8,366.60

Finding the Fourth Proportional to 18,754.04, 28,131.60 and 8,366.60

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Solution

The fourth proportional to 18,754.04, 28,131.60 and 8,366.60 is: 12,550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.04 : 28,131.60 = 8,366.60 : x
  2. Step 2: Convert to fraction form
    18,754.04/28,131.60 = 8,366.60/x
  3. Step 3: Cross multiply
    18,754.04x = 28,131.60 × 8,366.60
  4. Step 4: Simplify right side
    18,754.04x = 235,365,844.56
  5. Step 5: Solve for x
    x = 235,365,844.56/18,754.04
  6. Step 6: Final answer
    x = 12,550.14

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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.