Home / 18,795.52-28,187.52-4,942.72

Finding the Fourth Proportional to 18,795.52, 28,187.52 and 4,942.72

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Solution

The fourth proportional to 18,795.52, 28,187.52 and 4,942.72 is: 7,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.52 : 28,187.52 = 4,942.72 : x
  2. Step 2: Convert to fraction form
    18,795.52/28,187.52 = 4,942.72/x
  3. Step 3: Cross multiply
    18,795.52x = 28,187.52 × 4,942.72
  4. Step 4: Simplify right side
    18,795.52x = 139,323,018.85
  5. Step 5: Solve for x
    x = 139,323,018.85/18,795.52
  6. Step 6: Final answer
    x = 7,412.57

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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.