Home / 18,801.19-28,183.02-9,412.55

Finding the Fourth Proportional to 18,801.19, 28,183.02 and 9,412.55

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Solution

The fourth proportional to 18,801.19, 28,183.02 and 9,412.55 is: 14,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.19 : 28,183.02 = 9,412.55 : x
  2. Step 2: Convert to fraction form
    18,801.19/28,183.02 = 9,412.55/x
  3. Step 3: Cross multiply
    18,801.19x = 28,183.02 × 9,412.55
  4. Step 4: Simplify right side
    18,801.19x = 265,273,908.69
  5. Step 5: Solve for x
    x = 265,273,908.69/18,801.19
  6. Step 6: Final answer
    x = 14,109.42

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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.