Home / 13,609.37-18,780.84-7,641.02

Finding the Fourth Proportional to 13,609.37, 18,780.84 and 7,641.02

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Solution

The fourth proportional to 13,609.37, 18,780.84 and 7,641.02 is: 10,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.37 : 18,780.84 = 7,641.02 : x
  2. Step 2: Convert to fraction form
    13,609.37/18,780.84 = 7,641.02/x
  3. Step 3: Cross multiply
    13,609.37x = 18,780.84 × 7,641.02
  4. Step 4: Simplify right side
    13,609.37x = 143,504,680.15
  5. Step 5: Solve for x
    x = 143,504,680.15/13,609.37
  6. Step 6: Final answer
    x = 10,544.55

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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.