Home / 18,909.91-28,382.38-9,556.54

Finding the Fourth Proportional to 18,909.91, 28,382.38 and 9,556.54

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Solution

The fourth proportional to 18,909.91, 28,382.38 and 9,556.54 is: 14,343.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.91 : 28,382.38 = 9,556.54 : x
  2. Step 2: Convert to fraction form
    18,909.91/28,382.38 = 9,556.54/x
  3. Step 3: Cross multiply
    18,909.91x = 28,382.38 × 9,556.54
  4. Step 4: Simplify right side
    18,909.91x = 271,237,349.77
  5. Step 5: Solve for x
    x = 271,237,349.77/18,909.91
  6. Step 6: Final answer
    x = 14,343.66

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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.