Home / 18,814.68-28,221.66-4,963.68

Finding the Fourth Proportional to 18,814.68, 28,221.66 and 4,963.68

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Solution

The fourth proportional to 18,814.68, 28,221.66 and 4,963.68 is: 7,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.68 : 28,221.66 = 4,963.68 : x
  2. Step 2: Convert to fraction form
    18,814.68/28,221.66 = 4,963.68/x
  3. Step 3: Cross multiply
    18,814.68x = 28,221.66 × 4,963.68
  4. Step 4: Simplify right side
    18,814.68x = 140,083,289.31
  5. Step 5: Solve for x
    x = 140,083,289.31/18,814.68
  6. Step 6: Final answer
    x = 7,445.43

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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.