Home / 18,717.20-28,051.45-7,610.94

Finding the Fourth Proportional to 18,717.20, 28,051.45 and 7,610.94

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Solution

The fourth proportional to 18,717.20, 28,051.45 and 7,610.94 is: 11,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.20 : 28,051.45 = 7,610.94 : x
  2. Step 2: Convert to fraction form
    18,717.20/28,051.45 = 7,610.94/x
  3. Step 3: Cross multiply
    18,717.20x = 28,051.45 × 7,610.94
  4. Step 4: Simplify right side
    18,717.20x = 213,497,902.86
  5. Step 5: Solve for x
    x = 213,497,902.86/18,717.20
  6. Step 6: Final answer
    x = 11,406.51

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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.