Home / 13,517.63-18,654.12-7,549.38

Finding the Fourth Proportional to 13,517.63, 18,654.12 and 7,549.38

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Solution

The fourth proportional to 13,517.63, 18,654.12 and 7,549.38 is: 10,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.63 : 18,654.12 = 7,549.38 : x
  2. Step 2: Convert to fraction form
    13,517.63/18,654.12 = 7,549.38/x
  3. Step 3: Cross multiply
    13,517.63x = 18,654.12 × 7,549.38
  4. Step 4: Simplify right side
    13,517.63x = 140,827,040.45
  5. Step 5: Solve for x
    x = 140,827,040.45/13,517.63
  6. Step 6: Final answer
    x = 10,418.03

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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.