Home / 9,975.96-13,766.36-5,499.90

Finding the Fourth Proportional to 9,975.96, 13,766.36 and 5,499.90

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Solution

The fourth proportional to 9,975.96, 13,766.36 and 5,499.90 is: 7,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,975.96 : 13,766.36 = 5,499.90 : x
  2. Step 2: Convert to fraction form
    9,975.96/13,766.36 = 5,499.90/x
  3. Step 3: Cross multiply
    9,975.96x = 13,766.36 × 5,499.90
  4. Step 4: Simplify right side
    9,975.96x = 75,713,575.86
  5. Step 5: Solve for x
    x = 75,713,575.86/9,975.96
  6. Step 6: Final answer
    x = 7,589.60

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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.