Home / 13,347.98-18,418.59-7,379.75

Finding the Fourth Proportional to 13,347.98, 18,418.59 and 7,379.75

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Solution

The fourth proportional to 13,347.98, 18,418.59 and 7,379.75 is: 10,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.98 : 18,418.59 = 7,379.75 : x
  2. Step 2: Convert to fraction form
    13,347.98/18,418.59 = 7,379.75/x
  3. Step 3: Cross multiply
    13,347.98x = 18,418.59 × 7,379.75
  4. Step 4: Simplify right side
    13,347.98x = 135,924,497.46
  5. Step 5: Solve for x
    x = 135,924,497.46/13,347.98
  6. Step 6: Final answer
    x = 10,183.15

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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.