Home / 18,783.58-28,173.13-4,933.66

Finding the Fourth Proportional to 18,783.58, 28,173.13 and 4,933.66

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Solution

The fourth proportional to 18,783.58, 28,173.13 and 4,933.66 is: 7,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.58 : 28,173.13 = 4,933.66 : x
  2. Step 2: Convert to fraction form
    18,783.58/28,173.13 = 4,933.66/x
  3. Step 3: Cross multiply
    18,783.58x = 28,173.13 × 4,933.66
  4. Step 4: Simplify right side
    18,783.58x = 138,996,644.56
  5. Step 5: Solve for x
    x = 138,996,644.56/18,783.58
  6. Step 6: Final answer
    x = 7,399.90

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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.