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Finding the Fourth Proportional to 18,804.94, 28,200.92 and 7,708.48

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Solution

The fourth proportional to 18,804.94, 28,200.92 and 7,708.48 is: 11,560.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.94 : 28,200.92 = 7,708.48 : x
  2. Step 2: Convert to fraction form
    18,804.94/28,200.92 = 7,708.48/x
  3. Step 3: Cross multiply
    18,804.94x = 28,200.92 × 7,708.48
  4. Step 4: Simplify right side
    18,804.94x = 217,386,227.80
  5. Step 5: Solve for x
    x = 217,386,227.80/18,804.94
  6. Step 6: Final answer
    x = 11,560.06

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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.