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Finding the Fourth Proportional to 18,799.56, 28,200.06 and 5,653.80

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Solution

The fourth proportional to 18,799.56, 28,200.06 and 5,653.80 is: 8,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.56 : 28,200.06 = 5,653.80 : x
  2. Step 2: Convert to fraction form
    18,799.56/28,200.06 = 5,653.80/x
  3. Step 3: Cross multiply
    18,799.56x = 28,200.06 × 5,653.80
  4. Step 4: Simplify right side
    18,799.56x = 159,437,499.23
  5. Step 5: Solve for x
    x = 159,437,499.23/18,799.56
  6. Step 6: Final answer
    x = 8,480.92

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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.