Home / 13,699.38-18,908.74-8,034.96

Finding the Fourth Proportional to 13,699.38, 18,908.74 and 8,034.96

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Solution

The fourth proportional to 13,699.38, 18,908.74 and 8,034.96 is: 11,090.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.38 : 18,908.74 = 8,034.96 : x
  2. Step 2: Convert to fraction form
    13,699.38/18,908.74 = 8,034.96/x
  3. Step 3: Cross multiply
    13,699.38x = 18,908.74 × 8,034.96
  4. Step 4: Simplify right side
    13,699.38x = 151,930,969.55
  5. Step 5: Solve for x
    x = 151,930,969.55/13,699.38
  6. Step 6: Final answer
    x = 11,090.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.