Home / 13,310.98-18,369.03-7,261.54

Finding the Fourth Proportional to 13,310.98, 18,369.03 and 7,261.54

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Solution

The fourth proportional to 13,310.98, 18,369.03 and 7,261.54 is: 10,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.98 : 18,369.03 = 7,261.54 : x
  2. Step 2: Convert to fraction form
    13,310.98/18,369.03 = 7,261.54/x
  3. Step 3: Cross multiply
    13,310.98x = 18,369.03 × 7,261.54
  4. Step 4: Simplify right side
    13,310.98x = 133,387,446.11
  5. Step 5: Solve for x
    x = 133,387,446.11/13,310.98
  6. Step 6: Final answer
    x = 10,020.86

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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.