Home / 13,399.93-20,084.86-6,287.65

Finding the Fourth Proportional to 13,399.93, 20,084.86 and 6,287.65

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Solution

The fourth proportional to 13,399.93, 20,084.86 and 6,287.65 is: 9,424.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.93 : 20,084.86 = 6,287.65 : x
  2. Step 2: Convert to fraction form
    13,399.93/20,084.86 = 6,287.65/x
  3. Step 3: Cross multiply
    13,399.93x = 20,084.86 × 6,287.65
  4. Step 4: Simplify right side
    13,399.93x = 126,286,584.12
  5. Step 5: Solve for x
    x = 126,286,584.12/13,399.93
  6. Step 6: Final answer
    x = 9,424.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.