Home / 18,749.08-28,123.62-7,653.82

Finding the Fourth Proportional to 18,749.08, 28,123.62 and 7,653.82

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Solution

The fourth proportional to 18,749.08, 28,123.62 and 7,653.82 is: 11,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.08 : 28,123.62 = 7,653.82 : x
  2. Step 2: Convert to fraction form
    18,749.08/28,123.62 = 7,653.82/x
  3. Step 3: Cross multiply
    18,749.08x = 28,123.62 × 7,653.82
  4. Step 4: Simplify right side
    18,749.08x = 215,253,059.05
  5. Step 5: Solve for x
    x = 215,253,059.05/18,749.08
  6. Step 6: Final answer
    x = 11,480.72

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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.