Home / 18,631.02-27,938.33-9,863.89

Finding the Fourth Proportional to 18,631.02, 27,938.33 and 9,863.89

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Solution

The fourth proportional to 18,631.02, 27,938.33 and 9,863.89 is: 14,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.02 : 27,938.33 = 9,863.89 : x
  2. Step 2: Convert to fraction form
    18,631.02/27,938.33 = 9,863.89/x
  3. Step 3: Cross multiply
    18,631.02x = 27,938.33 × 9,863.89
  4. Step 4: Simplify right side
    18,631.02x = 275,580,613.90
  5. Step 5: Solve for x
    x = 275,580,613.90/18,631.02
  6. Step 6: Final answer
    x = 14,791.49

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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.