Home / 18,910.30-28,369.54-5,762.32

Finding the Fourth Proportional to 18,910.30, 28,369.54 and 5,762.32

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Solution

The fourth proportional to 18,910.30, 28,369.54 and 5,762.32 is: 8,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.30 : 28,369.54 = 5,762.32 : x
  2. Step 2: Convert to fraction form
    18,910.30/28,369.54 = 5,762.32/x
  3. Step 3: Cross multiply
    18,910.30x = 28,369.54 × 5,762.32
  4. Step 4: Simplify right side
    18,910.30x = 163,474,367.73
  5. Step 5: Solve for x
    x = 163,474,367.73/18,910.30
  6. Step 6: Final answer
    x = 8,644.73

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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.